√(- 9 ) / (( 4 - 7 i ) - ( 6 - 6 i )) = 3 i / ( 4 - 7 i - 6 + 6 i ) =
= 3 i / ( - 2 - i ) = - 3 i / ( 2 + i ) =
= - 1 - 2 i
= 3 i / ( - 2 - i ) = - 3 i / ( 2 + i ) =
= - 1 - 2 i
The sum of two numbers is fifteen. One number is three less than the other. Find the numbers.
1 answer:
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Answer:
Step-by-step explanation:
The sum already has common denominators so there is no need to change the denominators. Just add the numerators.
Option B) (x + 3)^2 − 5 is the correct answer
Step-by-step explanation:
Given expression is:
We will solve eah expression in the options to chek which is equivalent to given expression
So,
<u>A) (x + 3)^2 + 5</u>
NOT equivalent
<u>B) (x + 3)^2 − 5</u>
Equivalent
Hence,
Option B) (x + 3)^2 − 5 is the correct answer
Keywords: Equivalent expressions, polynomials
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