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labwork [276]
3 years ago
13

Which polynomials are listed with their correct additive inverse? Check all that apply. x2 + 3x – 2; –x2 – 3x + 2 –y7 – 10; –y7

+ 10 6z5 + 6z5 – 6z4; (–6z5) + (–6z5) + 6z4 x – 1; 1 – x (–5x2) + (–2x) + (–10); 5x2 – 2x + 10
Mathematics
2 answers:
Savatey [412]3 years ago
7 0

Answer:


Step-by-step explanation:

a c d. simple

garri49 [273]3 years ago
7 0

we know that

If two numbers have a sum of zero, then we say they are additive inverses

so

<u>case A) </u>

x^{2} +3x-2

-x^{2} -3x+2

Sum the polynomials

(x^{2} +3x-2)+(-x^{2} -3x+2)=0

therefore

they are additive inverses

<u>case B) </u>

-y^{7} -10

-y^{7} +10

Sum the polynomials

(-y^{7} -10)+(-y^{7} +10)=-2y^{7}

-2y^{7}\neq 0

therefore

they are not additive inverses

<u>case C) </u>

6z^{5} +6z^{5}-6z^{4}

(-6z^{5}) +(-6z^{5})+6z^{4}

Sum the polynomials

(6z^{5} +6z^{5}-6z^{4})+((-6z^{5}) +(-6z^{5})+6z^{4})=0

therefore

they are additive inverses

<u>case D) </u>

x-1

1-x

Sum the polynomials

(x-1)+(1-x)=0

therefore

they are additive inverses

<u>case E) </u>

(-5x^{2})+(-2x)+(-10)

5x^{2}-2x+10

Sum the polynomials

((-5x^{2})+(-2x)+(-10))+(5x^{2}-2x+10)=-4x

-4x}\neq 0

therefore

they are not additive inverses

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