1/2x -9, you take half of x so multiply 1/2 times x then you subtract the 9 after due to PEMDAS ( parentheses, exponents, multiplication & division, Add & Subtract) you follow the order of operation starting with Parentheses and ending with adding or subtracting
Distribute and get 2x^2+6x=2x^2+2x-5x-5
add like terms and get 2x^2+6x=2x^2-3x-5
subtract 2x^2 from both sides and get
6x=3x-5
subtract 3x from both sides
3x=5
divide both sides by 3
x=5/3
5 raised to the 4th power
Answer:
7.2
Step-by-step explanation:
distance between the two points. (1, 2), (7, 6) = √(x-x')²+(y-y')²
d = √(7-1)²+(6-2)² = √52 = 7.2
