Answer:
B
Step-by-step explanation:
Given
4x² - 72x = 0 ← factor out 4 from each term
4(x² - 18x) = 0
To complete the square
add/subtract (half the coefficient of the x- term)² to x² - 18x
4(x² + 2(- 9)x + 81 - 81) = 0
4(x - 9)² - 4(81) = 0
4(x - 9)² - 324 = 0 ( add 324 to both sides )
4(x - 9)² = 324 ( divide both sides by 4 )
(x - 9)² = 81 ( take the square root of both sides )
x - 9 = ± 
= ± 9 ( add 9 to both sides )
x = 9 ± 9
Then
x = 9 - 9 = 0
x = 9 + 9 = 18
Answer:
220
Step-by-step explanation:
<u>first we have by Bracket of BODMAS rule then we have to multiply 10 *8 = 80</u>
<u>first we have by Bracket of BODMAS rule then we have to multiply 10 *8 = 80then we have to open bracket 80 +150</u>
<u>first we have by Bracket of BODMAS rule then we have to multiply 10 *8 = 80then we have to open bracket 80 +150 = 220</u>
<u> (10*8) +15</u>
<u>Solution</u>
<u>Solution= (80) +150</u>
<u>Solution= (80) +150= 80+150</u>
<u>Solution= (80) +150= 80+150=. 220</u>
<u>Solution= (80) +150= 80+150=. 220 </u>
Answer:
n=3
m=2
Step-by-step explanation:
This done by factorizing thier powers.
