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- Unit-5 Algebraic ExpressionsUnit-5

Unit-5 Algebraic Expressions
In this unit we will discuss algebra.
Evaluate (2x + 7)(3y + z).

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Learning Pundits Content Team
First, we regard 2x+7 as a single term and use distributivity of multiplication over addition.
(2x + 7)(3y + z) = (2x + 7)3y + (2x + 7)z
= (2x.3y + 7.3y) + (2x.z + 7.z)
= 6xy + 21y + 2xz + 7z
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