Answer:
2x-4
Step-by-step explanation:
Hope it helps
Answer: -19
Step-by-step explanation:
Always follow the PEMDAS order. Parenthesis first start with (2 - 3) with gives you -1, then move to multiplying, (-1)4(4) which gives you -16. Then division, 9/3 giving you three. You will end up with -16-3 which gives you -19.
Answer:
B
Step-by-step explanation:
<span>Simplifying
49x^2 + -9 = 0
Reorder the terms:
-9 + 49x^2 = 0
Solving
-9 + 49x^2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '9' to each side of the equation.
-9 + 9 + 49x^2 = 0 + 9
Combine like terms: -9 + 9 = 0
0 + 49x^2 = 0 + 9
49x^2 = 0 + 9
Combine like terms: 0 + 9 = 9
49x^2 = 9
Divide each side by '49'.
x^2 = 0.1836734694
Simplifying
x^2 = 0.1836734694
Take the square root of each side:
x = {-0.428571429, 0.428571429}
hope this helps!!</span>
