40 + 3 x minus x square
Answers
Answered by
0
Answer:
-x² +3x +40
=- x² +(8-5)x +40
= -x² +8x -5x +40
= -x(x-8)-5(x-8)
= (-x-5)(x-8)
Step-by-step explanation:
Answered by
0
Step-by-step explanation:
-x²+3x+40
x²-3x-40
x²-8x+5x-40
x(x-8)+5(x-8)
(x+5) (x-8)
→ x= -5 ,x=8
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