Example

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

Question

$${ x }^{ 2 } -23 { x }^{ 2 } +142 \times -120=$$

Answer

$$-22*x^2-17040$$

Solution


Simplify  \(142\times -120\)  to  \(-17040\).
\[{x}^{2}-23{x}^{2}-17040\]
Collect like terms.
\[({x}^{2}-23{x}^{2})-17040\]
Simplify.
\[-22{x}^{2}-17040\]
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