Question

Evaluate each expression if $a=3$, $b=-2$, and $c=1.2$.

$c^2-ab$

Short answer

The required answer is $6.44$.

Step-by-step solution

Step 1- Perform the substitution

Substitute the provided values of a, b and c into the provided expression.

${\left(1.2\right)}^2-3\left(-2\right)$

– Simplify the expression 

Write the obtained expression in the simplified form.

$\begin{array}{c}\left(1.2\right)\left(1.2\right)+6=1.44+6\\ =6.44\end{array}$

Step 3- Make the conclusion

As nothing can be done further with the expression so obtained expression is the required expression.