Mathematics
Factorise:
7 - 12x - 4x2
Factorisation
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Answer
Given,
⇒ 7 - 12x - 4x2
⇒ 7 - 14x + 2x - 4x2
⇒ 7(1 - 2x) + 2x(1 - 2x)
⇒ (1 - 2x)(7 + 2x).
Hence, 7 - 12x - 4x2 = (1 - 2x)(7 + 2x).
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Factorise:
7 - 12x - 4x2
1 Like
Given,
⇒ 7 - 12x - 4x2
⇒ 7 - 14x + 2x - 4x2
⇒ 7(1 - 2x) + 2x(1 - 2x)
⇒ (1 - 2x)(7 + 2x).
Hence, 7 - 12x - 4x2 = (1 - 2x)(7 + 2x).
Answered By
1 Like