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Fill in the blank to make the quadratic below the square of a binomial:

9x^2 + 5x + ___

 Oct 23, 2020
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(3x+b)^2=9x^2+5x+b^2.

Let's solve this.

We get that 3b(2)=5.

So, we get that b=5/6.

Then, to fine ___, we do (5/6)^2=25/36.

 

Hope this helps! smiley

 Oct 23, 2020

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