Which expression is equivalent to 36x2 - 25?

a. (18x) 2 + (-5) 2

b. (18x) 2 - (5) 2

c. (6x) 2 + (-5) 2

d. (6x) 2 - (5) 2

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Mathematics

4 May, 07:48

Which expression is equivalent to 36x2 - 25?

a. (18x) 2 + (-5) 2

b. (18x) 2 - (5) 2

c. (6x) 2 + (-5) 2

d. (6x) 2 - (5) 2

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Answers (1)

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Andrade · Answer 1

The answer is d. (6x) 2 - (5) 2. 36 (x) ^2 - 25 = 36 * (x) ^2 - 25. Since 36 = 6^2 and 25 = 5^2, we can substitute this in the expression: 36 (x) ^2 - 25 = (6) ^2 * (x) ^2 - (5) ^2 = (6 * x) ^2 - (5) ^2 = (6x) ^2 - (5) ^2. Therefore, 36 (x) ^2 - 25 = (6x) ^2 - (5) ^2, so the choice d is correct.

Which expression is equivalent to 36x2 - 25?a. (18x) 2 + (-5) 2b. (18x) 2 - (5) 2c. (6x) 2 + (-5) 2d. (6x) 2 - (5) 2

Which expression is equivalent to 36x2 - 25?

a. (18x) 2 + (-5) 2

b. (18x) 2 - (5) 2

c. (6x) 2 + (-5) 2

d. (6x) 2 - (5) 2