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What is the Solution Set of x2 - 16 < 0?

Updated: 4/28/2022
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Samantha Ashley

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Q: What is the Solution Set of x2 - 16 < 0?
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What is the solution set of x2-7x-18 equals 0?

Using the quadratic formula, I found the solution set is x=2,x=-9


How do you sovle f(x)x2-9?

11


What does solutions mean in math?

An open statement is a sentence that contains a variable , such as x. The solution set for an open sentence is the set of values that when substituted for the variable make a true statement. The members of the solution set are called solutions. Examples: x = 2. Solution set is {2} solution is 2. x2 - 5 = 4 Solution set is {-3, 3 } solutions are -3 and 3. x &gt; 0 Solution set = {x " x &gt; 0 } That is all positive numbers. Every positive number is a solution. There are some finer points that I did not mention such as the possibility of more than one variable and limitations on the values that allowed in the substitutions.


What is the solution set of x2-x-20 equals 0?

Given the equation x2 - x - 20 = 0, we see that it can likely be factored easily. Through simple trial and error we find that: (x - 5)(x + 4) = 0. From here, we set both terms equal to zero to find all possible solutions. x - 5 = 0 x = 5 and x + 4 = 0 x = -4. Substituting 5 and -4 back into the original equation yield true results. Thus the solution set is x = -4, 5. More formal, the solution set is {-4, 5}. Note: There are other methods of solving this problem such as the quadratic formula or by graphing the function.


Solve for x - x2-9x plus 14 equals 0?

x - x2 - 9x + 14 = 0 ; whence, x2 + 8x = 14 , x2 + 8x + 16 = 30 , and x + 4 = &plusmn;&radic;30 . Therefore, x = &plusmn;&radic;30 - 4 .

Related questions

Solution set of x2 plus 49 equals 0?

x2 + 49 = 0 &there4; x2 = -49 &there4; x = 7i


What is the solution set for x2 - 16 equals 0?

I will assume you mean,X2 - 16 = 0X2 = 16take square root each sideX = (+/-) 4=========(-4, 0) and (4, 0)----------------------


What is the solution set for the equation x2 - x - 6 0?

X2 - X - 6 = 0what two factors of - 6 add up to - 1 ?(X + 2)(X - 3)============(- 2, 0 ) and (3, 0 )------------------------------solution set of points


What is the solution set of x2-7x-18 equals 0?

Using the quadratic formula, I found the solution set is x=2,x=-9


What is the solution set of 6x2 24 0?

6x2-24=0 6(x2-4)=0 x= {-2,2}


Can a quadratic inequality have a solution set that is all real numbers?

Yes. Consider x2 &acirc;&permil;&yen; 0


Does every quadratic equation have two distinct real numbers in its solution set?

Nope. Consider x2+0x+1=0. This means x2+1=0. This has two solutions, but they are complex numbers: +i and -i, where i is the squareroot of -1. How about x2+0x+0=0? This means x2=0. This has two solutions, sure, but they aren't distinct. In this case, x=0 for both solutions, so we just consider them one solution.


What are the solutions for the quadratic equation x2 plus 6x equals 16?

x2 + 6x = 16=> x2 + 6x - 16 = 0=> x2 + 8x -2x - 16 = 0=> (x+8)(x-2) = 0=> x = -8 or x = 2So, the solutions of the quadratic equation x2 + 6x = 16 are -8 and 2.


If x is a positive integer solve x2 plus 6x equals 16?

x2 + 6x = 16x2 + 6x - 16 = 0(x + 8)(x - 2) = 0x + 8 = 0 or x - 2 = 0x = -8 or x = 2Since it is given that x > 0, then x = -8 is not a solution of the equation. Thus, the only solution is x = 2.


Solve by factoring x2 10x -16?

Given: x2 + 10x - 16 Let: x2 + 10x - 16 = 0 x2 + 10x - 16 = 0 &there4; x2 + 10x + 25 = 16 + 25 &there4; (x + 5)2 = 41 &there4; x = -5 &plusmn; &radic;41 &there4; x2 + 10x - 16 = (x + 5 + &radic;41)(x + 5 - &radic;41)


What is the coordinate for the vertex of the parabola represented by the equation y equals xsquared -6x subtract 16?

-22


Can you factor x2 plus 11x plus 18?

x2 + 11x + 18 (x + 9)(x + 2) CHECK: x2 + 9x + 2x + 18 x2 + 11x + 18 SET EACH EQUAL TO ZERO: x + 9 = 0 x = -9 x + 2 = 0 x = -2 NOW YOU ARE DONE: Solution set: {-9, -2}