Problem
This is a new version of the question. Make sure you start new workings. Expand \( 5 g(g+7) \) Watch video \( { }^{15} 40 \) . \( \left({ }^{77} \square+\right. \) 5 6 \( \left.7 \quad\right|^{*} 8 \)
Solution
Step 1 ：5g(g+7) = 5g^2 + 5(7g)
Step 2 ：5g^2 + 35g
