Question

One of the factor of (a +26) + (2a -c)'-(a + 2c)'+3(a + 2b)(2a - c)(a + 2c) is
(A). 2a + 2b -3c
(B). 2a 2b +3c
(c) 2a + 2b +3c
(D). -2a-2b-3c​

Answer 1

Answer:

a) 2a + 2b -3c

Step-by-step explanation:

using formula

x^3 + y^3 +z^3 -3xyz = ( x+y+z) ( x^2 + y^2+ z^2 -xy-yz-zx)

here

x = ( a+2b)

y = ( 2a-c)

z = -( a+2z)