Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$( { x }^{ 2 } - { y }^{ 2 } )+b( { x }^{ 2 } - { y }^{ 2 } )=$$

Answer

$$x^2-y^2+b*(x^2-y^2)$$

Solution


Remove parentheses.
\[{x}^{2}-{y}^{2}+b({x}^{2}-{y}^{2})\]
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