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Earn +20 ptsQ: X2 plus 7x -8
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What is 7x 8?
x2+7x-8 = (x-1(x+8)
What is x squared-7x equals 8 factored?
x2 - 7x = 8 x2 - 7x - 8 = 0Now find two numbers that multiply to equal -8, and add to equal -7.(1) * (-8) = -8(1) + (-8) = -7(x+1)(x-8) = 0 This is the factored form of x2 - 7x = 8You can then solve the equation if necessary, and get:x = -1 or x = +8
What is the answer to 5x plus 8 equals 7x?
7x-5x=8 2x=8 x=4
Which of the following are solutions to the quadratic equation below Check all that apply. x2 plus 7x - 8 0?
To solve the equation x^2 + 7x - 80, you would get x = 6.105 and x = -13.105, I believe.
What is the answer to 9x minus 4 equals 7x plus 8?
9x-4 = 7x+8 9x-7x = 8+4 2x = 12 x = 6
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