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Answered by
3
20x^2-26x+8
=20x^2-16x-10x+8
=4x(5x-4)-2(5x-4)
=(4x-2)(5x-4)
=2(2x-1)(5x-4)
=20x^2-16x-10x+8
=4x(5x-4)-2(5x-4)
=(4x-2)(5x-4)
=2(2x-1)(5x-4)
asit183:
right
Answered by
2
(20x²-26x+8)/2 sum=(-13) , product=40
10x²-13x+4 number= (-5) (-8)
10x²-5x-8x+4
5x(2x-1) -4(2x-1)
∴(5x-4) (2x-1)
5x-4=0 , 2x-1=0
∴ x=4/5 , ∴x=1/2
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