Question

Jabarkanlah
a. (2x - 3) (4x - 2)
b. (-2x + 3) ²

Answer 1

A)  ( 2x - 3 ) ( 4x - 2)
   = 2x ( 4x - 2 ) - 3 ( 4x - 2 )
   = 8x² - 4x - 12x + 6
   = 8x² - 16x + 6

b)  ( - 2x + 3 )²
   = 4x² - 12x + 9

Answer 2

A. (2x-3)(4x-2)
=[2x(4x) + 2x(-2) -3(4x) + (-3)(-2)]
=8x²-4x-12x+6
=8x²-16x+6

b. (-2x+3)²
=(-2x+3)(-2x+3)
=[-2x(-2x)+ (-2x)(3) + 3(-2x) + 3(3)
=4x² -6x - 6x +9
=4x²-12x+9

kurang lebih mohon maaf