2. Add the following expressions :
(a) x²y + xy?, - 11x²y +10xy?, -10x²y - 11xy2
(b) 2x2 + 4y2 +5, - x2 +3y2 +10,- 2x2 - 4y2 - 10
(c) 4abc + a2 + 7b, 10a+14b, -2abc - 3a?
(d) x2 + y2 + 2xy, 3x2 + y2 - 4xy, x2 + y2
+
3
Subtract
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this questions answer is 20x²y
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