X² + 6x -12 = 0
x = <u>-(6) +/- √((6)² - 4(1)(-12))</u>
2(1)
x = <u>-6 +/- √(36 + 48)</u>
2
x = <u>-6 +/- √(84)
</u> 2<u>
</u>x = <u>-6 +/- 2√(21)
</u> 2<u>
</u>x = -3 <u>+</u> √(21)
x = -3 + √(21) x = -3 - √(21)
Not is posible because no exist a igualty
The first one! you probably got confused from the top two, they have the same data but the first one would be correct because the number line is in the correct order
1/2x(25-7). Difference means to subtract. And then just multiply by 1/2 since it is asking for half.
$80 times 0.25 equals 20
80 minus 20 equals 60 bucks
