Whats the answer help !!!!
2 answers:
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Answer:
Step-by-step explanation:
<h3>Step One</h3>We need to simplify the radical by breaking up the radicand into a product of known factors that are positive real numbers.
becomes
After simplifying the products, we get
.
is just the square root of 96 simplified so we need to use the coefficient i. i is the square root of -1, and the square root of 96 times i is the square root of 96, so we just need to multiply i in the coefficient.
That leaves us with .
Answer:
Step 3 is not correct (should be , not
Step-by-step explanation:
The expression that we have to simplify is:
We proceed step-by-step, in order to find the mistake did by Cedric:
1) First, we factorize the 5 outside:
--> this step is correct
2) We add +16 and -16 inside the brackets:
--> this step is correct
3) We rewrite the term as the square of a bynomial, which is
, so the expression becomes
--> we notice that this step is wrong: in fact, Cedric wrote
, which is not correct.
4) Now we continue: we rewrite -16+3 as -13,
5) Finally, we multiply the 5 by the terms in the bracket: