Question

Kasih jawaban yang terbaik

Answer 1

nomer 1
= 4(x+2y)+3x (2+5y)
= 4x +8y + 6x + 5y
= 10x + 13y

nomer 2
= 5p-6 ( p+3)+12
=  5p -6p -18 +12
= -p - 4

nomer 3
= 2d (d+3) -4d² +12
= 2d² + 3d -4d² +12
= -2d² +3d +12

nomer 4
= 9(5k+3l)-7(4c-2k)
= 45k + 18l - 28c -14k
= 31k +18l -28c

nomer 5
= 7n (n+5) +12n-2(n-1)
= 7n² + 35 +12n -2n +2
= 7n² +10n +37