Answer to Question #284969 in Algebra for bookaddict

Question #284969

the equation x^2+bx+c=0 has roots -5 and 7. find the value of b and the value of c.

Expert's answer

"x^2+bx+c=(x+5)(x-7)."

"x^2+bx+c=x^2+(5-7)x-5*7."

"x^2+bx+c=x^2-2x-35."

"b=-2, \\;c=-35."

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