Factorize completely 8a + 125ax3
...Factorize completely 8a + 125ax3
(2a + 5x2)(4 + 26ax)
a(2 + 5x)(4 - 10x + 25x2)
(2a + 5x)(4 - 10ax + 25x2)
a(2 + 5x)(4 + 10ax + 25x2)
Correct answer is B
8a+125ax3=(23)a+53ax3
= a(23+53x3)
∴a[23+(5x)3]
a3+b3=(a+b)(a2−ab+b2)
∴ a(23+(5x)3)
= a(2+5x)(4−10x+25x2)
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