Question

If x=7 and y=−5, evaluate the following expression:3x−y2​

Answer 1

31

Explanation:

Substitute x and y into the equation to get..

(3×7)-(-5×2)

21- -10

31

Hope this helps :)

Answer 2

the expression is equal to 31

Explanation:

• 3x-y2
• 3(7) - (-5)2

• 21 - (-10)
• 21 + 10 = 31