Answer: +42x
Step-by-step explanation:
The student only multiplied each term individually.
He should have (7x+3)² = (7x+3)(7x+3)
Which is 49x²+42x+9
Therefore the error is (42x) or the failure to apply the law of multiplication of variables in a bracket.
Answer:
40%
Step-by-step explanation:
make 20*5=100 , total, 8*5 which makes 40
Answer:false
Step-by-step explanation:
It would have to be equally to 3yards 2feet and 5 inches
Answer:
A. A reflection over the x-axis
