Question

what should be added to 7x^2-5x+1 to get -3x^2+4x+7 ?​

Answer 1

Answer:

this is the required answer

Answer 2

Step-by-step explanation:

Let the required number be "a"

according to the given problem

"a "should be added to 7x²-5x+1 to get -3x²+4x+7

=>a+7x²-5x+1=-3x²+4x+7

=>a=(-3x²+4x+7)-(7x²-5x+1)

=>a=-3x²+4x+7-7x²+5x-1

=>a=(-3x²-7x²)+(4x+5x)+(7-1)

=>a=-10x²+9x+6

The answer is -10x²+9x+6