0
Add your answer:
Earn +20 pts
How do you factor 2x squared minus 5x minus 7 equals 0?
(2x - 7)(x + 1)
How do you simplify y equals 2x-5 and 4x-y equals 7?
y = 2x-5 4x-y = 7 => y = 4x-7 2x-5 = 4x-7 2x-4x = 5-7 -2x = -2 x = 1 Therefore by substituting: x = 1 and y = -3
3x-1 equals 2x plus 6?
3X - 1 = 2X + 6 => Bring the 2X to the left X - 1 = 6 => Bring the -1 to the right X = 7
Which equation means that 7 less than twice a number is -1?
2x - 7 = -1
Solve 8 - 2x 7?
you have to put either an equal sign or say that this equation "equals" something but if you are asking 8 - 2x = 7 well you move 8 to the other side so 8 -2x -8 = 7 - 8 -2x = -1 now you divide -2 on both sides x = 1/2
What is 2x plus 7 equals 10?
2x + 7 = 10 2x + 7 - 7 = 10 - 7 2x = 3 2x/2 = 3/2 x = 1 1/2 OR 1.5 The answer is 1 1/2, also written as 1.5
2x squared plus 13x-7?
2x2 + 13x - 7 = zero(2x - 1 )( x + 7 ) = zero2x - 1 = zerox = 1/2x + 7 = zerox = -7
When x3 plus 3x2-2x plus 7 is divided by x plus 1 what is the remainder?
(x3 + 3x2 - 2x + 7)/(x + 1) = x2 + 2x - 4 + 11/(x + 1)(multiply x + 1 by x2, and subtract the product from the dividend)1. x2(x + 1) = x3 + x22. (x3 + 3x2 - 2x + 7) - (x3 + x2) = x3 + 3x2 - 2x + 7 - x3 - x2 = 2x2 - 2x + 7(multiply x + 1 by 2x, and subtract the product from 2x2 - 2x + 7)1. 2x(x + 1) = 2x2 + 2x2. (2x2 - 2x + 7) - (2x2 + 2x) = 2x2 - 2x + 7 - 2x2 - 2x = -4x + 7(multiply x + 1 by -4, and subtract the product from -4x + 7)1. -4(x + 1) = -4x - 42. -4x + 7 - (-4x - 4) = -4x + 7 + 4x + 4 = 11(remainder)
How do you factor 2x squared minus 5x minus 7 equals 0?
(2x - 7)(x + 1)
How do you Factor 8x square - 10x - 7?
(2x + 1)(4x - 7)
How factor 6x -15x -21?
I think you mean 6x2-15x-21 2x2-5x-7 2x2-7x+2x-7 x(2x-7)+1(2x-7) (x+1)(2x-7)
X2 plus 2x plus -6 equals 0?
x2 + 2x -6 = 0 x2 + 2x + 1 = 7 (x + 1)2 = 7 x = -1 ± √7
How do you solve 2x plus 7 equals 1?
2x + 7 = 1 Therefore, 2x = -6 x = -6/2 x = -3
What is the equation of 2x 1 equals 7?
im assuming your equation is 2x + 1 = 7 in this case you need to find what x equals 2x + 1 = 7 2x + 1 - 1 = 7-1 2x = 6 x = 3 put it back into the equation to check if your answer is correct 2(3) + 1 = 7 6 + 1 = 7 7 = 7 Correct! if your equation is 2x - 1 = 7 x = 4 check it 2(4) - 1 = 7 8 - 1 = 7 7 = 7 Correct! if your equation is 2x1 = 7 x = 7/2 check it 2(7/2)1 = 7 2(7/2) = 7 2 * 7 / 2 = 7 14/2 = 7 7 = 7 Correct! hope i got your equation right. if not you can message me on my message board to get more help.
How do you simplify y equals 2x-5 and 4x-y equals 7?
y = 2x-5 4x-y = 7 => y = 4x-7 2x-5 = 4x-7 2x-4x = 5-7 -2x = -2 x = 1 Therefore by substituting: x = 1 and y = -3
What is the solution to 2x plus 1 equals 7-10x?
The solution is 1/2 or 0.5. This is how: 2x+1=7-10x 2x=6-10x 12x=6 x=1/2
How do you solve 2x-1 equals 7?
2x-1=7 1) add 1 to both sides: 2x=8 2) divide both sides by 2: x=4 4 is the answer
