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3 years ago

Plz tell me what goes with what

Mathematics

1 answer:

Advocard [28]3 years ago

3 0

Answer:

Step-by-step explanation:

x²+5x-84

look for the factors of 84 that when you add together it will give +5

look for the factors of 84 that when you multiply together it will give -84

12 and 7

addition, multiplication

-12+7 = -5 -84

-12-7= -19 84

+12-7 = +5 -84 correct

then equate into the =5x and -84

x²+12x-7x-84

then factorize

x(x+12)-7(x+12)

(x-7)(x+12)

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