I think your answer is 60 sorry if its wrong
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Answer:
1) 2x^3-2x^2+4x+20
Step-by-step explanation:
line up the equations, having each variable aligned with the similar variable, and distribute the minus sign across the parenthesis
7x^3 + 4x + 13
-(5x^3 + 2x^2 - 7)
---------------------------------
2x^3 - 2x^2 +4x +20
4/10 = 2/5
When you divide both the numerator and denominator by 2 you will get a new fraction of 2/5. This fraction is in simplest form because you can't reduce it further.
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Hi! 0.015 is between 0.01 and and 0.02. Your welcome.
For this case we must solve the following equation:

For this, we follow the steps below:
We find the Neperian logarithm on both sides of the equation to remove the variable from the exponent

We use one of the logarithm properties to extract x from the exponent:

We subtract xln (7) on both sides of the equation:

We take x common factor:

We divide between
on both sides of the equation, then:

Answer:
