Answer = 2x^2+6x+1
3x+2+2x^2+3x-1
3x+1+2x^2+3x
Now combine like terms
3x+1+2x^2+3x
6x+1+2x^2
Rearrange terms
6x+1+2x^2
2x^2+6x+1
Answer:
x = ±6
Step-by-step explanation:
6x² - 216 = 0
( Add 216 to both sides )
6x² = 216
( Divide both sides by 6 to isolate x² )
x² = 36
( Square root both sides to isolate x )
x = ±6
Forty five times nine thousand ninehundred ninety nine is equal to 449,955
Answer:
x = (-15)
y = 6
z = 3
Step-by-step explanation:
x + y + z = -6______(1)
2x - y - 5z = -21____(2)
-x - y -6z = -9______(3)
(1) + (2)
z = 3, (1) + (2)
x = (-15), (1)