Subtract -2x^2+3x-9
from 8x^2+10x-10

-6x^2 - 7x +1

Step-by-step explanation:

2x^2+3x-9  -(8x^2+10x-10)

3x^2+3x-9 -8x^2-10x+10

Combine like terms

-6x^2 - 7x +1

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

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