Question

which expression can be used to find the sum of the polynomials? (9 – 3x2) (–8x2 4x 5)

Answer 1

For this case we have:

Polynomial 1: $P (x) = 9-3x ^ 2$

Polynomial 2: $Q (x) = - 8x ^ 2 + 4x + 5$

Sorting the polynomials:

Polynomial 1: $P (x) = - 3x ^ 2 + 9$

Polynomial 2: $Q (x) = - 8x ^ 2 + 4x + 5$

Adding term to term (similar) we have:

$P (x) + Q (x) = (- 3-8) x ^ 2 + (0 + 4) x + (9 + 5)\\P (x) + Q (x) = - 11x ^ 2 + 4x + 14$

Answer:

$A (x) = P (x) + Q (x) = - 11x ^ 2 + 4x + 14$

Answer 2

The expression can be used to find the sum of the polynomials is -11x^2+4x+14.

We have given the expression

Polynomial 1:

$P(x)=(9 - 3x^2)$

Polynomial 2:

$Q(x)=(-8x^2+ 4x +5)$

Sorting the polynomials

What is the expression?

An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Polynomial 1:

$(- 3x^2+9)$

Polynomial 2:

$(-8x^2+ 4x +5)$

Adding term to term (similar) we have:

$P(x)+Q(x)=(-3-8)^2+(0+4)x+(9+5)\\P(x)+Q(x)=-11x^2+4x+14$

Therefore the expression can be used to find the sum of the polynomials is -11x^2+4x+14.

To learn more about the polynomial visit:

https://brainly.com/question/2833285

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