5. (7x + 2y)(x + 4y)
Answers
Answered by
0
Step-by-step explanation:
7x²+7xy+2xy+8y²
7x²+9xy+8y²
Answered by
2
Answer:
7x(x+4y)+2y(x+4y)
7x2+28xy +2xy+8y2
7x2+30xy+8y2
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