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aleksklad [387]
4 years ago
7

Are the two expressions equivalent when x=4? 4(2+3x) 8+12x

Mathematics
1 answer:
enot [183]4 years ago
5 0

Answer:

Yes

Step-by-step explanation:

To solve, evaluate each equation when x = 4.

Rewrite: 4[2 + 3(4)]

Multiply: 4(2 + 12)

Add: 4(14)

Multiply: 56

Final answer: 56

Then,

Rewrite: 8 + 12(4)

Multiply: 8 + 48

Add: 56

Final answer: 56

Yes, both equations are equivalent.

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To solve this problem, we must substitute in 1 for the variable x in the equation. This is because the function as written is f(x), meaning that the function is evaluated as x currently, but we want to evaluate it at 1. To do this, all we have to do is replace each variable x with a 1 and simplify.

f(x) = x^2 + 2x + 3

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To simplify, we first to compute the exponents. This is because of the order of operations, which says that we should solve parentheses first, exponents next, then multiplication/division, then addition/subtraction last.

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