7x^2=63
solve for x
please show work
1 answer:
Answer:
x = ±3
Step-by-step explanation:
Step 1: Write equation
7x² = 63
Step 2: Solve for <em>x</em>
- Divide both sides by 7: x² = 9
- Square root both sides: x = ±3
Step 3: Check
<em>Plug in x to verify it's a solution.</em>
7(3)² = 63
7(9) = 63
63 = 63
7(-3)² = 63
7(9) = 63
63 = 63
You might be interested in
It’s 3 and then you have a lot to go get it all
Answer:
Step-by-step explanation:
x-4
Answer:
A 20/28
Step-by-step explanation:
Answer:
B(-3, -8)
Step-by-step explanation:
