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Sagot :
Answer:
4y - yx(3-7y) + 5 + 2(8-y) equals to 7xy^2 − 3xy + 2y + 21
Step-by-step explanation:
1. Multiply numbers inside the parentheses.
4y - yx(3-7y) + 5 + 2(8-y)= 4y − 3yx + 7y^2x + 5 + 16 − 2y
2. Then combine all like terms
4y − 3yx + 7y^2x + 5 + 16 − 2y
4y - 2y = 2y
2y − 3yx + 7y^2x + 5 + 16
5 + 16 = 21
2y − 3yx + 7y^2x + 21
3. After combining like terms, simplify.
2y − 3yx + 7y^2x + 21
Move y^2
2y − 3yx + 7xy^2 + 21
Move 2y
− 3yx + 7xy^2 + 2y + 21
Reorder - 3yx and 7xy^2 (7xy^2 is more bigger than -3yx)
7xy^2 − 3yx + 2y + 21
4. Final answer = 7xy^2 − 3xy + 2y + 21
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