Question

What must be added to 6x + 7 to get -12x + 9?

Answer 1

Answer:

the answer is another but it will help you

Lets y is to be added

y=(5x3−2x2+6x+7)=x3+3x2−x+1

y=−4x3+5x2−7x−6.

Answer 2

Answer:

-18x+2

Step-by-step explanation:

To get the other addend:

We must subtract the given addend from the sum

-12x + 9 - (6x + 7)

-12x + 9 -6x-7

= -18x+2

Hence, -18x+2 should be added to 6x + 7 to get -12x + 9.

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