Solve, by completing the square, x^2=22x-5, leave your answer in surd form
1 answer:
Answer:
a) The complete square form = ( x-11)² = 116
b) x = 11 + 2√29
Step-by-step explanation:
<u><em> Step(i):-</em></u>
Given equation x² = 22x -5
⇒ x² - 22x + 5 =0
⇒ x² - 2× 11 x + (11)² -(11)² + 5=0
⇒ ( x- 11)² -121 +5 =0
⇒ ( x-11)² = 116
The complete square form = ( x-11)² = 116
<u><em>Step(ii):-</em></u>
⇒ (x-11) = √116 = √29 ×√4
⇒ x-11 = 2√29
⇒ x = 11 + 2√29
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Hope I helped!
Best of Luck :)
Answer:
B:Multiplication of the outer terms of the two factors does not result in -7x
Step-by-step explanation:
-I5I=-5 vs. I-5I= 5
The absolute value will stay the same for both negative and positive. The result will change depending on where you put your absolute value signs.
Answer:
this is most likely wrong but x=>7
