So here we just are gonna distribute and simplify.
Answer:
a square plus 2ab plus b square......<em><u>hope</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>help</u></em><em><u> </u></em><em><u>you</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>thank</u></em><em><u> </u></em><em><u>you</u></em>
The student added 9 1/2 instead of adding -9 1/2
Answer:
16
Step-by-step explanation:
Substitute s = - 3 into the expression
7 - 3(- 3) = 7 + 9 = 16