Answer:
This isn’t really a valid equation, so I’m guessing you forgot to type something.
Step-by-step explanation:
When simplifying the following expression we want to look first at adding like terms to together
2x² - 5x² = -3x²
Once the squared exponents are added together add the x’s together:
x + 7x + 7x = 15x
Now add the integers together:
1 + 5 + (-4) = 2
Since you can’t add exponents with each other unless the have the same exponent they stay the same:
The equation should look like this:
-3x² + 15x + 2 -3x²³
Now add the exponents together because it is exponents of x.
-6x^25 + 15x + 2
That is the most simplified version of the complex equation.
Answer:
1/8
Step-by-step explanation:
What you do is just times 2/8 by 1/2
2/8*1/2=1/8 is your answer.
Answer:
D) 111
Step-by-step explanation:
(-75) - (-20) +x = 56
A negative minus a negative means add
-75 + 20 +x =56
-55 +x = 56
Add 55 to both sides
-55+55 +x = 56+55
x = 111