Answer:
Option A.,
Step-by-step explanation:
(5x3− x + 14) − (3x2− 9x + 4)
First remove the 2 sets of parentheses. Note when we remove the second one we multiply the terms inside by -1. ( Or we might say we distribute the negative over this parentheses.)
= 5x^3 - x + 14 - 3x^2 + 9x - 4
Now we simplify like terms:-
= 5x^3 - 3x^2 + 8x + 10 (answer).
Answer:
41?
Step-by-step explanation:
Answer:
x = 4
y = -1
z = 3
Step-by-step explanation:
Let 1st number = x
Let 2nd number = y
Let 3rd number = z
x+y+z=6
x+y=z
x=z+1
(Apply Simultaneous Equations)
Hence:
z+z=6
2z=6
z=6/2
z=3
Now:
x+y=3
x=3+1
x=4
Now:
4+y=3
y=3-4
y=-1
