Answer:
x = -7 and x = 3
Step-by-step explanation:
x² + 4x - 21 = 0 factors as follows: (x + 7)(x - 3) = 0.
Then x = -7 and x = 3.
.265
Decimals are ALWAYS tenths, hundredths, then thousandths.
So in this case the 2 will be in the tenths place
the 6 will be in the hundredths place
the 5 will be in the thousandths place.
Answer:
Must add: 202
Step-by-step explanation:

a = x
2ab = 26x
2ab = 26a [ substitute a instead of x]

b= 13
So,

But given equation is :

We have find the difference between 169 and -33 to get the number that should be added to get the perfect square.
That is , 169 - (-33) = 202
Therefore ,

A+ B equals C times G squared divided by four gives you the dividend of 9×8