1)Factorize x^+3x-40
2)Factorize 5x^-16x+3
Answers
Answered by
0
Answer:
1) x²+3x-40=0
x²+8x-5x-40=0
x(x+8)-5(x+8)=0
(x+8)(x-5)=0
x=5 or -8
2)5x²-16x+3=0
5x²-15x-x+3=0
5x(x-3)-1(x-3)=0
(x-3)(5x-1)=0
x=3 or 1/5
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Answered by
0
Answer:
1.) (x - 5) (x + 8)
2.) (x - 3) (5x - 1)
Step-by-step explanation:
1.) x² + 3x - 40
(by middle term splitting method)
x² + 8x - 5x - 40
x ( x+ 8 ) - 5 ( x + 8 )
(x - 5) (x + 8) Answer
2.) 5x² - 16x + 3
5x² - x - 15x + 3
x (5x - 1) - 3 (5x - 1)
(x - 3) (5x - 1) Answer
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