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OpenStudy (anonymous):
Solve. x^2 - 10x = -21 a. x = 7 and x = 3 b. x = -7 and x = 3 c. x = -7 and x = -3 d. x = 7 and x = -3
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OpenStudy (anonymous):
@eliassaab :)
OpenStudy (anonymous):
first set this to zero by adding 21 to both sides...do you know how to factor?
OpenStudy (ankit042):
x^2-10x+21=0 x^2-7x -3x+21 =0 can you solve now?
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