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Which of the following are solutions to the quadratic equation below? Check all that apply. X^2+ 8x=9 A. -3 B. 1 C. -9 D. -1 E. 3
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Which of the following are solutions to the quadratic equation below?

Check all that apply.
X^2+ 8x=9
A. -3
B. 1
C. -9
D. -1
E. 3

User Drew Jex
by
5.0k points

1 Answer

4 votes

Answer:

1 and -9

Explanation:


x^2+8x-9=0\\<=> x^2-x+9x-9=0\\<=> x(x-1)+9(x-1)=0\\<=> (x+9)(x-1)=0\\<=> x = -9 \ \ or \ \ x =1\\

hope this helps

User Jkovba
by
4.4k points
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