Question

Factorise: 4a? - 3a - 10
(a)(a + 2)(4a +5)
(b). (a -2)(4a - 5)
(c) (a-2) (4a + 5)
(d). None​

Answer 1

Explanation:

option c is correct .

as product is 40 so we have two factors -8 and 5 .Taking common we get 4a+5 and a-2

Answer 2

Answer:

OPTION (C) is correct

${4a}^{2} - 8a + 5a - 10$

$4a(a - 2) + 5(a - 2)$

$(4a + 5)(a - 2)$

This is how you would do this question

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