Show That {a }^(2) + {b}^(2) = 8

Question

asked Feb 5, 2021 10.4k views

1 Answer

SBSTP · Answer 1 · 2021-02-11T21:10:10+0000

Answer:

Please see the attached picture for the full solution.

*From the 4th line of the 1st image, you could also expand it using

(a +b)²= a² +2ab +b² and

(a -b)²= a² -2ab +b².

When squaring a fraction, square both the denominator and numerator.

➣(a/b)²= a²/b²

$Show That {a }^(2) + {b}^(2) = 8 -example-1$

$Show That {a }^(2) + {b}^(2) = 8 -example-2$