Please attach the picture first.
Answer:
1 and −1 are the only solutions to the equation x^2 = 1.
Step-by-step explanation:
We shall proceed as he suggests
Given
substitute a+bi in x, we get
Rewriting the both sides in standard form for a complex number
Equating the real parts on each side of the equation, and equating the imaginary parts on each side of the equation.
and
So either a=0 or b=0. If a=0 then
. has no real solution.
If b=0 then
. or
Hence proved.
Answer: b) (2m³ - 4p⁵)(2m³ + 4p⁵)
<u>Step-by-step explanation:</u>
Use the difference of a square formula: a² - b² = (a - b)(a + b)
(2m³)² - (4p⁵)² = (2m³ - 4p⁵)(2m³ + 4p⁵)
How much does it cost to buy 10 computer mice (not the living thing :) ) that are $24.75 each.
10(24.75)=247.5
It will cost $247.5