Question

Sederhanakan bentuk-bentuk aljabar berikut.
a. (2x + 8) + (4x - 5 - 5y)
b. (3p +q) + (-2p - 5q + 7)
c. (3x pangkat2 + 2y - xy) + 5(2x - 3y + 5xy)
d. 2(x + 2y - xy) + 5(2x - 3y + 5xy)

Answer 1

A : 2x+8 + 4x-5-5y
jawab: (2x + 4x) + (8+4) -5y
         = 6x + 12 - 5y
b. 3p+q + -2p-5q+7
jawab : 3p - (-2p) + 6q + 7
         = 6p + 6q + 7
c.(3x²+2y-xy)+5(2x-3y+5xy)
=3x²+2y-xy+10x-15y+25xy
jawabnya = 3x²-13y-24xy+10x
d 2(x+2y-xy) +5 (2x-3y+5xy)
jawab: 2(x+2x) + (2y+3y) + (5xy+xy)
         = 6x + 5y + 6xy
Semoga membantu

Answer 2

A.(2x+8)+(4x-5-5y)=2x+8+4x-5-5y=2x+4x-5y+8-5=6x-5y+3
b.(3p+q)+(-2p-5q+7)=3p+q-2p-5q+7=p-4q+7
c.(3x²+2y-xy)+5(2x-3y+5xy)=3x²+2y-xy+10x-15y+25xy=3x²-13y-24xy+10x
d.2(x+2y-xy)+5(2x-3y+5xy)=2x+4y-2xy+10x-15y+25xy=12x+-11y+23xy