Mathematics
27.06.2023 03:41
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Simplify 3x (4x – 5) + 3 and find its value for x = 3
Simplify 3x (4x – 5) + 3 and find its value for x = 3
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Jerrikasmith28
4,6(25 marks)
Simplified: 12(x^2)-15x+3if x = 3: 66
Step-by-step 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.
omidbromand786
5,0(28 marks)
63
Step-by-step explanation: Substitute the value of the variable into the equation and simplify.
PaMuth1100
4,5(29 marks)
- 14 < y - 12
+12 +12
-2 < y
y should be more than -2 to make the statement true.
Among the choices, only b. 2 is the answer that will make the inequality true.
-14 < 2 - 12
-14 < -10
+12 +12
-2 < y
y should be more than -2 to make the statement true.
Among the choices, only b. 2 is the answer that will make the inequality true.
-14 < 2 - 12
-14 < -10
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