Answer:
3x²-29x+4
Step-by-step explanation:
3x²-x-4=-30x
0=-30x-3x²+x+4
0=-3x²-29x+4
Answer:
x=3/8
Step-by-step explanation:
turn 3/4 into a fraction that has a denominator of 8 3/4x2= 6/8
To get it to 9/8 you add x which is 3/8
so 3/8+6/8 is 9/8
x=3/8
Answer:
E. -8, -29
Step-by-step explanation:
a-b=21
5a -2b =18
Take the first equation and solve for a by adding b to each side
a-b=21
a-b+b=21+b
a = 21+b
Now substitute a=21+b into the second equation
5a -2b =18
5(21+b) -2b =18
Distribute the 5
105 +5b-2b =18
Combine like terms
105 +3b =18
Subtract 105 from each side
105-105 +3b = 18-105
3b = -87
Divide each side by 3
3b/3 =-87/3
b = -29
if b = -29, we can substitute it into a =21+b
a = 21-29
a = -8
Answer:
0.3
Step-by-step explanation:
0.03*10= 0.3
0.3/10= 0.03
you can use a calculator or move the decimal place forward once for each ten
hope this helps <3
X^4. Multiply x by x^3 so add exponents
