The answer should be (-4,2)
2x2x2x7 is the correct answer
Ok so the answer is <span>Students in Class 1 took less time to complete the test than students in Class 2, and their times were more variable. Im 10000% positive</span>
The value of the expression is -24
This is because you distribute the -4 to both of the values in the parenthesis like this:
-4(7) + -4(-1)
This can be simplified to:
-28 + 4
Which equals -24
Hope this helps!