5. Add or subtract

(M^2-m+3) + (m+1)

A. M^2-m-2

B. M^2+2

C. M^2-2

D. M^2+m+2

6. Add or subtract

(5x^2+x - 3) - (-2x^3+4)

A. - 2x^3+5x^2+x-7

B. - 2x^3+5x^2 + x+1

C. 2x^3 + 5x^2+x-7

D. 2x^3 + 5x^2+x+1

(If anyone has those answers and all the other answers to the unit 6 unit test id be grateful if you commented the answers)

Question

Mathematics

Kibbles

27 October, 14:42

5. Add or subtract

(M^2-m+3) + (m+1)

A. M^2-m-2

B. M^2+2

C. M^2-2

D. M^2+m+2

6. Add or subtract

(5x^2+x - 3) - (-2x^3+4)

A. - 2x^3+5x^2+x-7

B. - 2x^3+5x^2 + x+1

C. 2x^3 + 5x^2+x-7

D. 2x^3 + 5x^2+x+1

(If anyone has those answers and all the other answers to the unit 6 unit test id be grateful if you commented the answers)

+3

Answers (1)

Know the Answer?

Chelsea Brooks · Answer 1

5. (M^2 - m + 3) + (m + 1) =

(m^2) ( - m + m) + (3 + 1) =

m^2 + 4

Either your options are wrong or you might have put the wrong sign somewhere?

6. (5x^2 + x - 3) - (-2x^3 + 4) =

( - 2x^3) + (5x^2) + (x) - (3 + 4) =

-2x^3 + 5x^2 + x + 1

Answer: B)