Answer: -2a² + 2a + 2
Explanation:
Given worded expression
subtract the sum of (8a-6a²+9) and (-10a-8+8a²) from 3
Convert to numerical expression
3 - [(8a - 6a² + 9) + (-10a - 8 + 8a²)]
Expand parentheses in the bracket
=3 - [8a - 6a² + 9 - 10a - 8 + 8a²]
Combine like terms in the bracket
=3 - [(-6a² + 8a²) + (8a - 10a) + (9 - 8)]
=3 - [2a² - 2a + 1]
Expand bracket
=3 - 2a² + 2a - 1
Combine like terms
=-2a² + 2a + (3 - 1)
=
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