3 years ago

Simplify by combining like terms: 9x - 14y + 9 + 13y

1 answer:

andre [41]3 years ago

7 0

Answer:

9x-y+9

Step-by-step explanation:

so what you do first is combine -14y and 13 y and you get -y

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faltersainse [42]

The square of a binomial is written like

$(x\pm a)^2 = x^2\pm 2ax + a^2$

In your case, you have $2ax=-8x$ , which implies $a=-4$

So, we want to write

$(x-4)^2 = x^2-8x+16$

But our left hand side is

$x^2-8x-10$

If we add 26 to both sides, we have

$x^2 - 8x - 10 +26 = 18+26 \iff x^2-8x+16=44 \iff (x-4)^2=44$

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Contact [7]

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sasho [114]

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madreJ [45]

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4 years ago