factorise each of the following as the product of two factors -5x^2-50x-80
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6
- 5x² - 50x - 80
Changing the symbols
5x² + 50x + 80 = 0
5x² + 10x + 40x + 80 = 0
5x ( x + 2 ) 40 ( x + 2 ) = 0
( 5x + 40 ) ( x + 2 ) = 0
x = - 2 , - 8 ➡ Answer
Answered by
8
-5x² - 50x - 80
changing the symbols
5x² + 50x + 80 = 0
5x² + 10x + 40x + 80 = 0
5x ( x + 2 ) 40 ( x + 2 ) = 0
( 5x + 40 ) ( x + 2 ) = 0
x = - 2 , - 8 → Answer
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