factorisation of 4x²-16x+7
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Step-by-step explanation:
4x^2-16x+7
4x^2-14x-2x+7
2x(2x-7)-1(2x-7)
(2x-1)(2x-7)
x=1/2 , x=7/2
Answered by
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Answer:
Step-by-step explanation:
Given,
Let p ( x ) = 4x square - 16x + 7
= 4x square - 2x - 14x + 7 [∵ 4 × 7 = 28 , (-2) (-14) = 28 , -2 + ( -14) = -2 - 14 = - 16, - × - = +, + × - = - ] = 2x ( 2x - 1 ) - 7 ( 2x - 1 )
= ( 2x - 1 ) ( 2x - 7 ) -is the answer.
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