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1 vote
What is the following product?

(5 StartRoot 2 EndRoot minus 4 StartRoot 3 EndRoot) (5 StartRoot 2 EndRoot minus 4 StartRoot 3 EndRoot)
–2
2
22 – 40 StartRoot 6 EndRoot
98 – 41 StartRoot 6 EndRoot

2 Answers

3 votes

Final answer:

The product of (5√2 - 4√3)(5√2 - 4√3) is found using the distributive property. After multiplying and combining like terms, the result is 98 - 40√6.

Step-by-step explanation:

To find the product of (5√2 - 4√3)(5√2 - 4√3), we apply the distributive property (also known as the FOIL method for binomials), which stands for First, Outer, Inner, Last:

  • First: Multiply the first terms in each binomial: (5√2)(5√2) = 25·2 = 50.
  • Outer: Multiply the outer terms in each binomial: (5√2)(-4√3) = -20√6.
  • Inner: Multiply the inner terms in each binomial: (-4√3)(5√2) = -20√6.
  • Last: Multiply the last terms in each binomial: (-4√3)(-4√3) = 16·3 = 48.

Combine these results: 50 - 20√6 - 20√6 + 48. The like terms here are the two -20√6 terms. Combine them to get -40√6.

The final answer is 50 + 48 - 40√6 = 98 - 40√6.

Therefore, the product is “98 - 40√6”, which simplifies to this exact form.

User DaveIdito
by
4.6k points
1 vote

Answer:

the answer is D

Step-by-step explanation:

Edge 2022

User Adrien
by
4.5k points