Question

5(2a+b)2+6(2a+b)-8 fid the equatio

Answer 1

Hii friend,

5(2a+b) × 2 + 6(2a+b) -8

10a +5b× 2 + 12a +6b -8

10a+10b +12a +6b -8

10a+12a +10b +6b -8

22a + 16b -8

22a+16b = 8


Hence,

Equation = 22a+16b = 8 OR 22a+16b-8 = 0


HOPE IT WILL HELP YOU.... :-)

Answer 2

Let (2a +b) = x

5x^2 + 6x - 8

= 5x^2 +10x - 4x - 8

= 5x ( x + 2) - 4(x +2)

= (5x - 4)(x +2)

= [ 5(2a +b) - 4] [2a +b +2]

= ( 10a +5b - 4)(2a +b +2)