third binomial formula problem 1
you can solve the following math problem here: third binomial formula problem 1
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The third binomial formula is an important basis in mathematics!
Calculate the following binomials formulas:
a) (11a + 5b) • (11a – 5b) = ?
b) (15rs – 2t) • (15rs + 2t) = ?
a) answer:
(11a + 5b) • (11a – 5b) =
a² – b²
(11a • 11a) – (5b • 5b) =
121a² – 25b²
b) answer:
(15rs – 2t) • (15rs + 2t) =
a² – b²
(15rs • 15rs) – (2t • 2t) =
225r²s² – 4t²
More exercises:
- third binomial formula problem 2
- second binomial formula problem 1
- first binomial formulas problem 2