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(i) -7mn + 5, 12mn + 2, 9mn - 8, -2m - 3
(ii) 4x²y , -3xy² , -5xy², 5x²y
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Answer:
Group the like term
(i) [-7mn+ 12mn+9mn]+[5+2-8+3]
= 14mn + 2
(ii) 4x²y + -3xy² + 5xy² + 5x²y
Group the like terms
[4x²y + 5x²y] + [-3xy² + 5xy²]
= 9x²y + -2xy² which can be written like
9x²y - 2xy²
Hope this helps....
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