tolong jawab soalnya besok di kumpul 1.a.(5x+b)(3×+2) b.(2×-1)(4×-3) 2.a.(3×+1)2 < = pangkat 2 b.(2×+6)2 c.(7×+2)2 d.(4×-1)2 3.a.(4a-3)(4a+3) b.(6×+2y)(6×2y) 4

1)
a) (5x+b)(3x+2)
@ 15x^2 + 10x + 3xb + 2b

b) (2x-1)(4x-3)
@ 8x^2 -6x - 4x + 3
@ 8x^2 -10x + 3

2)
a) (3x+1)^2
@ (3x+1) (3x+1)
@ 9x^2 + 3x + 3x + 1
@ 9x^× + 6x + 1

b) (2x+6)^2
@ (2x+6) (2x+6)
@ 4x^2 + 12x + 12x + 36
@ 4x^2 + 24x + 36

c) (7x+2)^
@ (7x+2) (7x+2)
@ 49x^2 + 14x + 14x + 4
@ 49x^2 + 28x + 4

d) (4x-1)^2
@ (4x-1) (4x-1)
@ 16x^2 -4x -4x + 1
@ 16x^2 -8x + 1

3)

a) (4a-3)(4a+3)
@ 16a^2 + 12a - 12a -9
@ 16a^2 - 9

b) (6x+2y) (6x-2y)
@ 36x^2 - 12xy + 12xy -4y^2
@ 36x^2 - 4y^2

Tanda : ^ itu pangkat ya...
Semoga membantu.. ^_^