Step-by-step explanation:
-2x+3=-4
-2x=-7
x=7/2=3.5..
HOPE IT HELPS.
18. 4x^1/4
hope this helps!
didnt know about 20. but im confident u can figure it out!
Try this:
x³+4x²+x-6=0
1) To re-write the equation into form:
1*x³+4*x²+1*x-6=0, the note 1+4+1=6, it means x=1
2) to re-write the equation into form:
(x-1)(x²+5x+6)=0
(x-1)(x+2)(x+3)=0
3)
Answer: -3;-2;1.