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3 years ago

X^2 + bx + 49 is a perfect squad trinomial what is one possible value of b?

Mathematics

1 answer:

ddd [48]3 years ago

7 0

a perfect square trinomial, (x + y)² = x² + 2xy + y²

so, if we have the x of the bx, what is left is the b

the expression would have to be (x + 7)², since we have the 49 and the x²

so, what's left: x² + 14x + 49,

b = 14

hope it helps :)

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