Example

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

Question

$$2ab \pm 3a+2 { b }^{ 2 } +3b$$

Evaluate

$2ab±3a+2b^{2}+3b$

Differentiate w.r.t. a

$\frac{\mathrm{d}}{\mathrm{d}a}(2ab±3a)$

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