(-3) + (-5) + 9
(-3) + (-5) = -8
-8 + 9
= 1
Answer: 8.040328
I don't know but hope it helps
To find the difference of the given expression, first step is to get rid of parenthesis. So, distribute negative sign to each terms of the second parenthesis. Hence,
(9x² + 10x + 4) - (9x² + 5x - 1)
= 9x² + 10x + 4 - 9x² - 5x + 1.
= (9x² - 9x²) +(10x - 5x) + (4 + 1) Group the like terms.
= 0 + 5x + 5 Combine the like terms.
= 5x + 5.
So, first choice is correct.
Hope this helps you!
Answer:
9-2i
Step-by-step explanation:
(1 + 2i) * (1 - 4i)
(1*1)-(1*4i)+(2i*1)-(2i)*(4i)
(1)-(4i)+(2i)-(8i^2)
i^2 = -1
1-4i+2i+8
1-2i+8
9-2i
<h3>
Answer: Choice B) -t+7</h3>
Explanation
The like terms are ones that have the same variable in them, or that dont have a variable at all attached. One pair of like terms is t and -2t, which combine to t+(-2t) = t-2t = -t
The other pair of like terms are 4 and 3 which add to 7
So t+4+3-2t simplifies fully to -t+7, which is the same as 7+(-t) = 7-t
We cannot simplify any further from here as the 7 and -t are not like terms.
