3 years ago

CAN SOMEONE PLEASE HELP ME!!!!!

Mathematics

1 answer:

USPshnik [31]3 years ago

8 0

Answer:

Step-by-step explanation:

2{5x²-15+(-9xy²)}-(2y²+4x-xy²)+3x²

=2{5x²-15-9xy²}-(2y²+4x-xy²)+3x²

=10x²-30-18xy²-2y²-4x+xy²+3x²

=13x²-2y²-17xy²-4x-30

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