kreginaite kreginaite

Today at 4:54 AM
Mathematics

Answered

express x²+4x-7 in the form (x+a)²-b where a and be are integers

Answer :

tisaeb14 tisaeb14

Today at 4:58 AM

Answer:

(x + 2)^2 - 11.

Step-by-step explanation:

f(x) = x^2 + 4x - 7

So x^2 + 4x = (x + 2)^2 - 4 so we have:

f(x) = (x + 2)^2 - 4 - 7

f(x) = (x + 2)^2 - 11.

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