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KE8717504
 3 years ago
Find all positive and negative integers b such that 7x^2+bx+5 factors. B= (use comma's to seperate answers)
KE8717504
 3 years ago
Find all positive and negative integers b such that 7x^2+bx+5 factors. B= (use comma's to seperate answers)

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Shi
 3 years ago
Best ResponseYou've already chosen the best response.0I think you should start by using the quadratic formula, though I think there might be a better way

KE8717504
 3 years ago
Best ResponseYou've already chosen the best response.0what's the better way?

ArkGoLucky
 3 years ago
Best ResponseYou've already chosen the best response.0take the factors of 7 and 5 and mess with them to get all the possible b's

KE8717504
 3 years ago
Best ResponseYou've already chosen the best response.0the only factors of 7 are 1 and 7 and the only factors of 5 are 1 and 5

KE8717504
 3 years ago
Best ResponseYou've already chosen the best response.0so how would i list that?

ArkGoLucky
 3 years ago
Best ResponseYou've already chosen the best response.0the answers are 12, 12, 2 and 2 I think. check if that's right

ArkGoLucky
 3 years ago
Best ResponseYou've already chosen the best response.036 doesn't work try factoring it

Shi
 3 years ago
Best ResponseYou've already chosen the best response.07x^2 + 35x + x + 5 7x(x+5) + 1(x+5) (7x+1)(x+5)

Shi
 3 years ago
Best ResponseYou've already chosen the best response.0I don't think I've had this problem before but http://www.algebra.com/algebra/homework/Polynomialsandrationalexpressions/Polynomialsandrationalexpressions.faq.question.177236.html shows you how to get your solution
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