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find the square root of the first and last terms and try to combine them to get the middle term
* first and last coefficients I should have said
(a + b^2 = a^2 + 2ab + b^2 a and b have to such that they can form 2ab
I want to say B but I'm not sure-
the last 2 option are incorrect because there are no real square roots of -16 and -9
what are the square roots of 2a^2 and 25
* 4a^2 and 25?
remember that 25 = 5*5 or -5*-5
The square root of 25 is 5, but I'm not sure about 4a^2
2a * 2a = 4a^2
sqrt 25 is 5 OR -5
Okay, that makes sense, so wait would the square root of 4a^2 be 2a?
so if a = 2a and b = -5 what is the value of 2ab?
So it would be 2a*5 since b=5?
Or -5 I should say.
no 2 * 2a * -5
what does that come to?
2a*25, right? Since you really can't do anything with the A right now because we don't know what that is-
NONO NEVERMIND 2a*10
2a * -10
its NEGATIVE 5 here because the middle term is negative
Oh, okay. That makes more sense.
so what does 2*-10a simplify to?
I think that's right at least-