500
because when you power to the second power a square root, it cancels and the answer is the number you originally had
Replace x in each equation and see which ones are true.
The answers are:
C. If 5x + 10 =20 then x =2
D. If 6x-12=48, then x=10
F. If 8x(x-4)=32, then x=8
Answer:
Step-by-step explanation:
24x = 3 * 8 * x
3 = 3 * 1
Greatest common factor = 3
24x +3 = 3*8x + 3*1
=3(8x + 1)
Answer:
Therefore
15.

16.

17.

Step-by-step explanation:
15.

Using the Identity (a + b)(a - b) = (a² - b²) we get
Consider here a = 5c and b = 3 then we will have
.....as required
16.

Here Factorize 8 such that sum up to be 9
∴ 8 × 1 = 8 and 8 + 1 =9
... as required
17.

Here Factorize 21 such that sum up to be -10
∴ -3 × -7 = + 21 and -3 - 7 = - 10
........as required
Therefore
15.

16.

17.
