find the value of (3x-4)(3x+1)
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Answered by
3
Answer:
(3x-4)(3x+1)
= 3x(3x+1)-4(3x+1)
= 9x^2+3x-12x-4
= 9x^2-9x-4
Step-by-step explanation:
Answered by
0
Answer:
3x(3x + 1) - 4(3x + 1)
⇒9x² + 3x - 12x - 4
⇒9x² - 9x - 4
OR
using identity (a+b)(a+c) = a²+ a(b+c) + b.c
⇒(3x)² + 3x(-4+1) + (-4*1)
⇒ 9x² - 9x -4
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