2 years ago

Factor the following difference of perfect squares x^2-81

Mathematics

2 answers:

Margarita [4]2 years ago

7 0

Answer:

(x+9)(X-9)

Step-by-step explanation:

Brrunno [24]2 years ago

5 0

Since both terms are perfect squares, factor using the difference of squares formula, a ^2 − b^ 2 = ( a + b ) ( a − b ) where a = x and b = 9 . ( x + 9 ) ( x − 9 )

You might be interested in

can you assume that any fraction is in simplest form if either the numerator or denominator is a prime number?

vesna_86 [32]

Answer:

some occasions yes and other no for example if a fraction was 3/9 the numerator is prime but the fraction can still be simplified to 1/3 but a number were 3/5 then you wouldn't be able to simplify it

4 0

3 years ago

Read 2 more answers

Please help with this, thanks

Readme [11.4K]

Answer:

BDC is half of mBC = 11°

Easily you see that C is A + BDC = 23°

Since C = 23° so mDC is twice = 46°