Question

. Find the sum of the following polynomials.

Answer 1

Answer ad Step-by-step explanation:

1. Adding 10mn and -15mn.

10mn + -15mn = -5mn.

2. Adding $-7a^{2}$ and $-8a^{2}$.

$-7a^{2} + -8a^{2} = -15a^{2}$.

3. Adding 6(x + 3) and -7(x + 3).

6x + 18 + -7x - 21

x - 3.

4. Adding ?

5. Adding 0.5xyz and 1.5 xyz.

0.5xyz + 1.5xyz = 2xyz.

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