Question:
The factorization of 7a2 - 14a - 21?
Answer:
Given,
7a2 - 14a - 21
= 7(a2 - 2a - 3)
= 7(a2 - 3a + a - 3)
= 7{a(a - 3) + 1(a - 3)}
= 7*(a - 3)*(a + 1)
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The factorization of 7a2 - 14a - 21?
Given,
7a2 - 14a - 21
= 7(a2 - 2a - 3)
= 7(a2 - 3a + a - 3)
= 7{a(a - 3) + 1(a - 3)}
= 7*(a - 3)*(a + 1)