Which expression is equivalent to 100 n^2 - 1?

a) (10n) ^2 - (1) ^2

b) (10n^2) ^2 - (1) ^2

c) (50n) ^2 - (1) ^2

d) (50n^2) ^2 - (1) ^2

Question

Kara Suarez

Mathematics

26 December, 22:07

Which expression is equivalent to 100 n^2 - 1?

a) (10n) ^2 - (1) ^2

b) (10n^2) ^2 - (1) ^2

c) (50n) ^2 - (1) ^2

d) (50n^2) ^2 - (1) ^2

+1

Answers (2)

Know the Answer?

Beckham Briggs · Answer 1

So we can ignore the endings because they all have to same endings. We know that 10^2 = 100 We see only 2 answers that have that a and b. But we also need to get the n to the power. So we power each number in the parenthesis by 2. Only A lets you power both 10 and n at the same time.

Answer : A

Babbles · Answer 2

a

Step-by-step explanation:

100n^2 = (10n^2)

-1 = - (1^2)

Which expression is equivalent to 100 n^2 - 1?a) (10n) ^2 - (1) ^2b) (10n^2) ^2 - (1) ^2c) (50n) ^2 - (1) ^2d) (50n^2) ^2 - (1) ^2

Which expression is equivalent to 100 n^2 - 1?

a) (10n) ^2 - (1) ^2

b) (10n^2) ^2 - (1) ^2

c) (50n) ^2 - (1) ^2

d) (50n^2) ^2 - (1) ^2