Answer:
The fully factored form is 3(x^2 - 7))
Step-by-step explanation:
The only thing you can do with this equation is take out a factor of 3. You cannot simplify the resulting parenthesis without using irrational numbers.
A. .x -x=0
x+ -x=0
0=0
all real numbers are solutions
b. x-y+(-x)=x-y+(-x)
-y=-y
0=0
x=0/0 0 over 0
Use ratios to solve
15 m/8 km = x m/50 km Cross multiply
15(50) = 8x
750 = 8x divide by 8 on both sides
93.75 = x
93.75 miles = 50km
Step-by-step explanation:
<u>Substitute x = 12 and y = 4 into the equations:</u>
<u>1.</u>
Incorrect.
<u>2</u><u>.</u>
Incorrect.
<u>3</u><u>.</u>
Incorrect.
<u>4.</u>
Incorrect.
All equations are incorrect when x and y are substituted.
x > -3 divide by -5 on both sides and then switch the sign bc everytime u divide by a negative number u have to switch the sign
