Sederhanakanlah!

Jawaban:

A. 15xy-22pq-7xy-4pq

<=> 15xy-7xy-22pq-4pq

= 8xy-26pq

B. 3(5a-3b)-7a+9b

<=>15a-9b-7a+9b

=15a-7a-9b+9b

=8a

C. -5(3p²+2pq²)+2(6p²q-5pq²)

<=>-15p²-10pq²+12p²q-10pq²

= -15p²-20pq²+12p²q

D. 7(2m³-m²+3m) -4(3m³+4m²-7m)

<=>14m³-7m²+21m -12m³-16m²+28m

=2m³-23m²+49m