The correct option is A (x 7)(2x 1) 2x^2 15x+7=2x^2 14x x+7 #160; #160; #160; #160; #160; #160; #160; #160; #160; #160 ...

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Method of Common Factors

Factorise: ...

Question

Factorise: $2 x^{2} - 15 x + 7$

(x + 7) (2 x - 1)

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(x - 1) (2 x - 7)

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(x - 7) (2 x - 1)

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(x + 1) (2 x - 7)

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Solution

The correct option is A $(x - 7) (2 x - 1)$
$2 x^{2} - 15 x + 7 = 2 x^{2} - 14 x - x + 7$ $(\frac{s u m = - 15}{P r o d . = 14})$
$= 2 x (x - 7) - 1 (x - 7) = (x - 7) (2 x - 1)$

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