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21 votes
21 votes
Simplify 3x (4x – 5) + 3 and find its value for x = 3

User YasirAzgar
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2 Answers

18 votes
18 votes

Answer: 63

Step-by-step explanation: Substitute the value of the variable into the equation and simplify.

User Annick
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18 votes
18 votes

Answer:

Simplified: 12(x^2)-15x+3----if x = 3: 66

Explanation:

When you simplify expressions, you have to take out the parentheses, so we just multiply 3x by everything inside the parentheses. So 3x(4x-5) we get 12(x^2) - 15x and then we just add the 3 so we get 12(x^2)-15x+3. Now all we have to do is substitute x as 3, we get 66 as your answer. Sorry if I'm wrong, this is what I got.

User Alex Amiryan
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