She added 4r and ,+r instead of 4r and -r
Answer:
Step-by-step explanation:
(X²+2x+5)(2x)
= 2x(x²) +2x(2x) + 2x(5)
= 2x³ + 4x² + 10x
Answer:

Step-by-step explanation:
Slope can be calculated using following formula
----------- (1)
<u>Here</u>

Substitute values in equation (1)


Answer:
n = n/4 - 2
Step-by-step explanation:
n = 1/4 * n - 2
= n/4 - 2