Question 1. Add the following
(a) 3x^2y, -5x^2y, -x^2y
(b) a + b - 3, b + 2a - 1
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Answer:
Step-by-step explanation:
(a) 3x^2y + (- 5x^2y) + (- x^2y)
= 3x^2y - 5x^2y - 1x^2y
= -3x^2y
(b) a + b - 3 + b + 2a - 1
= a + 2a + b + b - 3 - 1
= 3a + 2b - 4
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