2x2 + 8x - 12 = 0
4 + 8x - 12 = 0
8x = 12 - 4
8x = 8
x = 1
Answer:
Hey there! ok , so your equation would be 28 / 3
Step-by-step explanation:
The equation would be 28/3 because there are 28 students in the class and the ratio of boys to girls is 3-9 meaning that it is 1/3, which is the same as dividing by 3, so the equation would be 28/3
Let's solve your equation step-by-step.
−3x2−4x−4=0
Step 1: Use quadratic formula with a=-3, b=-4, c=-4.
x=
−b±√b2−4ac
2a
x=
−(−4)±√(−4)2−4(−3)(−4)
2(−3)
x=
4±√−32
−6
Answer:
No real solutions.
Answer:
You need four squares.
On the top left square, you put the number 20 over it, and the number 30 to its left. Put the number 600 in the square.
Next, the bottom left square. But the number 4 on the left side of the square, and put the number 80 in the square.
Now, the top right box. put the number 8 over it, and fill it with the number 240.
Last, fill the bottom right square with the number 32.