Question

the movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending o evaluate the expression $a^2 + 6ab$ for $a = -3$ and $b = 4$. $-63$ $-56$ $-180$ $-81$

Explanation:

Step1: Substitute \(a = -3\) and \(b = 4\) into the expression

First, substitute \(a = -3\) and \(b = 4\) into \(a^{2}+6ab\). So we get \((-3)^{2}+6\times(-3)\times4\).

Step2: Calculate each term

Calculate \((-3)^{2}\), which is \((-3)\times(-3)=9\). Then calculate \(6\times(-3)\times4\), first \(6\times(-3)= - 18\), then \(-18\times4=-72\).

Step3: Add the two terms together

Now add the two results: \(9+(-72)=9 - 72=-63\).

Answer:

\(-63\)