Mathematics
Factorise:
x2 + 7x - 18
Factorisation
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Answer
Given,
⇒ x2 + 7x - 18
⇒ x2 + 9x - 2x - 18
⇒ x(x + 9) - 2(x + 9)
⇒ (x + 9)(x - 2).
Hence, x2 + 7x - 18 = (x + 9)(x - 2).
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Factorise:
x2 + 7x - 18
3 Likes
Given,
⇒ x2 + 7x - 18
⇒ x2 + 9x - 2x - 18
⇒ x(x + 9) - 2(x + 9)
⇒ (x + 9)(x - 2).
Hence, x2 + 7x - 18 = (x + 9)(x - 2).
Answered By
1 Like