The sum of 8x^2-x+4 and x-5 is
1) 8x^2+9
2)8x^2-1
3)8x^2-2x+9
4)8x^2-2x-1
explain how you got your answer

8x² - 1

Step-by-step explanation:

Summing the 2 expressions together gives

8x² - x + 4 + x - 5 ←  collect like terms

= 8x² + (- x + x) + (4 - 5)

= 8x² + 0 + (- 1) = 8x² - 1

Option 2

Step-by-step explanation:

8x²-x+4

+    x-5

=

8x²-1

your answer is b ^w^ hope i

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.