Example

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

Question

$$4(3-x)-5x(x-3)$$

Answer

$$12+11*x-5*x^2$$

Solution


Expand by distributing terms.
\[12-4x-5x(x-3)\]
Expand by distributing terms.
\[12-4x-(5{x}^{2}-15x)\]
Remove parentheses.
\[12-4x-5{x}^{2}+15x\]
Collect like terms.
\[12+(-4x+15x)-5{x}^{2}\]
Simplify.
\[12+11x-5{x}^{2}\]
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