2 years ago

Find the difference for (-3ab-8a+8)-(-5ab+2)

Mathematics

2 answers:

CaHeK987 [17]2 years ago

6 0

-3ab-8a+8
-(-5ab +2)
------------------
2ab-8a+6

liubo4ka [24]2 years ago

6 0

Since the - sign is infront of an equation in parenthesis you have to distribute it as -1. So...
(-3ab-8a+8) -(-5ab+2)
(-3ab-8a+8) +5ab-2 hint. Negative times a negative equals a positive.
Now combine like terms.

2ab - 8a + 6
there is you final answer

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General Formulas and Concepts:

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Standard Form: ax² + bx + c = 0
Expanding by FOIL (First Inside Outside Last)
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Step-by-step explanation:

Step 1: Define equation

y = -(x - 3)² + 8

Step 2: Rewrite

Expand [FOIL]: y = -(x² - 6x + 9) + 8
Distribute -1: y = -x² + 6x - 9 + 8
Combine like terms: y = -x² + 6x - 1

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