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Gemiola [76]
3 years ago
14

Complete the following sentence to form a true statement. The expressions x2 - 14x + and (X - _)2 are equivalent. The e expressi

ons x2 - 14x + [and (x-D) are equivalent (Simplify your answer. Type an integer or a fraction.)​

Mathematics
1 answer:
lara [203]3 years ago
8 0
The expressions x2 - 14x + 49 and (x - 7)2 are equivalent.

(x + a)^2 = (x + a)(x + a) = x^2 + 2ax + a^2

In this case 2a = -14 so a= -7 and a^2 = 49
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