SOLUTION: I need help with these two problems. Multiply (5√3-15√5) (4√3+12√5) Multiply and simplify ^3 sq rt y^4 * ^3 sq rt 16y^5

Question 198380: I need help with these two problems.
Multiply (5√3-15√5) (4√3+12√5)
Multiply and simplify ^3 sq rt y^4 * ^3 sq rt 16y^5

Found 2 solutions by jim_thompson5910, arallie:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
# 1

Start with the given expression.

Now let's FOIL the expression.

Remember, when you FOIL an expression, you follow this procedure:

Multiply the First terms:.

Multiply the Outer terms:.

Multiply the Inner terms:.

Multiply the Last terms:.

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So we have the terms: , , ,

Now add every term listed above to make a single expression.

Now combine like terms.

So FOILs to .

In other words, .

# 2

Start with the given expression.

Combine the roots.

Multiply

Factor 16 to get 8*2

Rewrite as

Break up the root.

Evaluate the cube root of 8 to get 2

Evaluate the cube root of to get

Rearrange the terms.

So
Answer by arallie(162) (Show Source): You can put this solution on YOUR website!

Multiply and simplify ^3 sq rt y^4 * ^3 sq rt 16y^5
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SOLUTION: I need help with these two problems. Multiply (5&#8730;3-15&#8730;5) (4&#8730;3+12&#8730;5) Multiply and simplify ^3 sq rt y^4 * ^3 sq rt 16y^5

SOLUTION: I need help with these two problems. Multiply (5√3-15√5) (4√3+12√5) Multiply and simplify ^3 sq rt y^4 * ^3 sq rt 16y^5