Example

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

Question

$$Change.one.-Sign.as.+Sign.to.get.the. \displaystyle\sum_{ 9 }^{ } \left( \right)$$

Evaluate

$eCaghn$

Differentiate w.r.t. C

$eaghn$

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