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Addition and Subtraction of Algebraic Expressions

Question 1 vi...

Question

Question 1 (vi)

Simplify combining like terms:

$(3 y^{2} + 5 y - 4) - (8 y - y^{2} - 4)$

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Solution

$(3 y^{2} + 5 y - 4) - (8 y - y^{2} - 4) = 3 y^{2} + 5 y - 4 - 8 y + y^{2} + 4$
$= (3 y^{2} + y^{2}) + (5 y - 8 y) - (4 - 4)$
$= 4 y^{2} - 3 y - 0 = 4 y^{2} - 3 y$

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Addition and Subtraction of Algebraic Expressions

Standard VII Mathematics

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