Question

5a^2-a-4 factorize the equestion
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Answer 1

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$5 {a}^{2} - a - 4 = 0$

$5 {a}^{2} - 5a + 4a - 4 = 0$

$5a(a - 1) + 4(a - 1) = 0$

$(5a + 4)(a - 1) = 0$

a = 1 or a = -⁴/5