Step-by-step explanation:
if x-4 is a factor of 2x^3 + x^2- 26x - 40
then f(4) = 0
f(x) = 2x^3 + x^2- 26x - 40
f(4) = 2(4)^3 + (4)^2 - 26(4) - 40
f(4)= 2(64) + 16 - 104 - 40
f(4) = 128 + 16 - 104 - 40
f(4) = 0
hence factorize completely is the photo
What does the symbol in the image on number 39 mean
1 answer:
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In order to figure out what N is you have to isolate it by dividing by 50 on both sides as shown below:
Answer:
Step-by-step explanation:
If you want to solve this easily, you can just remove x and add 30x + 60x.
We know that 30 + 60 is 90. So we will add x to 90.
Now you have your answer!
Hope this helps!