X2+5x-6. a=1, b=5, and c=-6 The formula is: -b plus or minus the square root of b squared minus 4ac all over 2a. -b+square root of b2-4ac ---- 2a -5 plus or minus the square root of 5 squared minus 4(1)(-6) -5 plus or minus the square root of 25-4(-6) -5 plus or minus the square root of 25+24 -5 plus or minus the square root of 49 -5 plus or minus 7 Here is where you split into two different answers: Number 1: -5 plus 7= 2 Number 2: -5 minus 7= -12 Your answer is X=2, -12
8060 Source: calculator
9t2 + 42t + 49 is a perfect square, equal to (3t + 7)2
negative 49. This is because a minus multiplied by a plus is a minus.
well, the square root of 81 is 9, and seven squared is 49, so it wud be 40
25 squared plus 49 squared is equal to 3,026.
49 - x2 = -(x2 -49) = - (x-7)(x+7) divide by x -7 Answer: -(x+7) = -x-7
Yes because if x2-14x+49 then it is (x-7)(x-7) when factored
This is called an inequality. If x squared is greater than or equal to 49, then x is plus or minus 7 or greater than plus 7 or less than - 7.
49 psi plus or minus 549 psi plus or minus 5
7 Squared is 49. 10 plus 49 is 59.
3 + 43 = 46 7 squared = 49 46 + 49 = 95
X2+5x-6. a=1, b=5, and c=-6 The formula is: -b plus or minus the square root of b squared minus 4ac all over 2a. -b+square root of b2-4ac ---- 2a -5 plus or minus the square root of 5 squared minus 4(1)(-6) -5 plus or minus the square root of 25-4(-6) -5 plus or minus the square root of 25+24 -5 plus or minus the square root of 49 -5 plus or minus 7 Here is where you split into two different answers: Number 1: -5 plus 7= 2 Number 2: -5 minus 7= -12 Your answer is X=2, -12
49 psi plus/minus 549 psi plus/minus 5
x=7
8060 Source: calculator
It is a difference of squares. 9x^2-49=(3x+7)(3x-7)