Simplify: i) (a + b)(5a – 3b) + (a – 3b)(a – b) ii) (a – b) (a2 + b2 + ab) – (a + b) (a2 + b2 – ab) iii) (b2 – 49) (b + 7) + 343

1 answer:

marin [14]3 years ago

8 0

Answer:

plz mark brainliest✌️✌️

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