You want to be finding out what two factors (where one of them is a perfect square) has the produce of 63. It seems like 9 x 7 (9 is the perfect square) works.

The square root of 9 is 3 so we can just have

(which just means 3 times the square root of 7).
Answer:
x = -3
Step-by-step explanation:
5x + 3 = 4x,
x + 3 = 0,
x = -3
Answer:
24c
Step-by-step explanation:
I see 4 times 6c, which is,
24c
Hope this helps!!
Answer:
112
Step-by-step explanation:
The volume is given by l*b*h=4*4*7=112