second binomial formula problem 2
you can solve the following math problem here: second binomial formula problem 2
If you can solve this problem without a mistake, you are an expert.
You can find more exercises here:
Calculate the following binomials formulas:
a) (20a² – 1)² =
b) (1/2 g – 1/3 h)² =
Here you can downloads two exercise sheets:
answers:
a) answer
(20a² – 1)² =
a² – 2ab + b²
(20a² • 20a²) – (2 • 20a² • 1) + (1 • 1) =
400a4 – 40a² + 1
b) answer
(1/2 g – 1/3 h)² =
a² – 2ab + b²
(1/2 g • 1/2 g) – (2 • 1/2 g • –1/3 h) + (1/3 h • 1/3 h) =
1/4 g² – 2/6 gh + 1/9 h² / shorten the central part with 2
1/4 g² – 1/3 gh + 1/9 h²