Question
If $a = 2$ and $b = 3$, find the value of:
$5a^2- 2ab$
$5a^2- 2ab$
✓
Answer
Substituting a = 2 and b = 3 in the, given expression, we get:
$5a^2- 2ab = 5 × (2)^2- 2 × 2 × 3$
= 5 × 4 – 4 × 3
= 20 - 12 = 8
$5a^2- 2ab = 5 × (2)^2- 2 × 2 × 3$
= 5 × 4 – 4 × 3
= 20 - 12 = 8
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