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what is the sum of x2+5x-2 and 8-7x?​

Sagot :

Answer:

1−3x2

Step-by-step explanation:

Explanation:

(2x2−7)+(8−5x2)

First remove the parenthesis, they are serving no purpose here:

2x2−7+8−5x2

Add like terms:

1−3x2

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