SOLUTION: I have a problem I would like to get your opinion on for my answer. Here it is: Evaluate each of the expressions if a=-2, b=5, c=-4, d=6 So here is the problem: b(with a sq rt o

Question 109894: I have a problem I would like to get your opinion on for my answer.
Here it is: Evaluate each of the expressions if a=-2, b=5, c=-4, d=6 So here is the problem: b(with a sq rt of 2) - 2bc + c (with a sq. rt of 2)
My answer is this 5(5)- 2(5)(-4)+(-4 sq. rt of 2) am I on the right track here for my answer.
I am sorry I could not place the sq.rt of 2 with the first letter "b" and the last letter "c" I could not figure out on this web page how to do that. I appreciate your help on this for me.
Thank you, Barb Neely
Answer by JessicaGill(40) (Show Source): You can put this solution on YOUR website!

With b=5 and c=-4 the substitution will look as follows

Per the order of operations we need to process the exponents first
becomes 25 and becomes 16
Replace in the equation

Next simplify any multiplication. becomes
Replace in the equation
Note that there are 2 minus signs with the 40. This will convert the negative 40 into a positive 40, thus the equation will look like this in its finality
Simplify
Your answer should be
I have applied the universal simplifier and solver as well so that you can see the steps in animation. Also, if you want to show a number raised to a power of another number use the carat symbol (shift and the number 6 (^) on your keyboard.) Just a helpful hint.

Solved by pluggable solver: EXPLAIN simplification of an expression

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