What is the difference of the two polynomials? (9x2 + 8x) - (2x2 + 3x)

7x^2+5x

Step-by-step explanation:

Given

Polynomial 1: 9x^2+8x

Polynomial 2: 2x^2+3x

We have to find subtraction of both

So,

9x^2+8x - (2x^2+3x)

First of all the brackets will be eliminated by multilying the minus sign

9x^2+8x-2x^2-3x

The terms with same power of variable will be written together

9x^2-2x^2+8x-3x

=7x^2+5x ..

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

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answer: d.) the total number of protons and neutrons is 15

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