Solve 2x2 + 12x − 14 = 0 by completing the square.

the solutions are 1 and -7

Step-by-step explanation:

first add 14 to both sides

2x²+12x=14

2(x²+6x)=14 now find half of 6x and square it, then add it to both sides

2(x²+6x+9)=14+18(9 was multiplied by 2)

no factor

2(x+3)²=32 divide both sides by 2

(x+3)²=16 square root both sides

x+3=+/- 4 subtract 3

x= 4-3=1

x= -4-3=-7

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer

0.6

39mph

step-by-step explanation: