8. It is a function, the x’s do not repeat
9. It is not a function, -3 is listed twice
Answer:
<span>x=<span><span>5±<span>√41</span></span>4</span></span>
Explanation:
<span>2<span>x2</span>−5x+1=3</span>
<span><span>aaaaaaa</span>−3a−3<span>aaa</span></span>Subtract 3 from both sides
<span>2<span>x2</span>−5x−2=0</span>
This equation is not factorable, so use the quadratic formula.
<span>x=<span><span>−b±<span>√<span><span>b2</span>−4ac</span></span></span><span>2a</span></span><span>aaa</span></span> for<span><span>aaa</span>a<span>x2</span>+bx+c=0</span>
<span>a=2,b=−5,c=−2</span>
<span>x=<span><span>−<span>(−5)</span>±<span>√<span><span><span>(−5)</span>2</span>−4<span>(2)</span><span>(−2)</span></span></span></span><span>2⋅2</span></span></span>
<span>x=<span><span><span>5±<span>√41</span></span>4</span></span></span>
hope this helped :)
alisa202
Answer:A
Step-by-step explanation:
Answer:
Dont use long words, keep your questions short,
Step-by-step explanation:
Answer:
2528
Step-by-step explanation:
First, we follow the rules of PEMDAS
Parenthesis
Exponents
Multiply
Divide
Add
Subtract
The first thing we need to do is Multiply
216 * 12
= 2592
Now we subtract
2592 - 64
= 2528
Best Of Luck,
- I.A. -
