Answer:
Step-by-step explanation:
We are going to use the identity
because this identities right hand side matches your expression where
and
.
So we have that is equal to
.
Consider the equation 2y - 4x = 12
2 answers:
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this is because when 40 is broken down into two numbers (one divisible to get out of the square root, and one not) you get 25 + 15 under the square root. we know that the square root of 25 is 5, so we can put 5 outside the root and leave 15 inside.
-------------- try the next problem, and if you don't understand, please reply back.
answer is for a)
Answer:
I've attached a graph with this, that's your answer
