Question

simplify the expression and find its value when a=5 and b=-3
2(a2+ab)+3-ab​

Answer 1

Hey There ...

2(5.2+5.-3)+3-5.-3

= 2(10-15)+3+15

=2(-5)+18

=-10+18

=8 (ans)

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Answer 2

First let us simplify the given expression:-

$2( {a}^{2} + ab) + 3 - ab$

$2 {a}^{2} + 2ab + 3 - ab$

Now to find the value of this simplified equation, we will put the values of a nd b in it.

$2(25) + 2(5)( - 3) + 3 - ( - 15)$

$50 - 30 + 3 + 15 = 38$

So, the value of this expression is 38.