Hello, i have a question about quadratic equations. i don’t know how to slove these: 1. (x-6)(2x-6)=20 2. (x+3) ² = 8x+12 3. (3x-1)(x+5)=3x ² can somebody me?

Step-by-step explanation:

1.X= 8 or 1

2.X= 3 or -1

3. X = 5/14

Step-by-step explanation:

1. Expanding your original equation (x-6)(2x-6)=20) , you get 2x^2-18x+36=20. Then, subtract 20 from both sides. You  get 2x^2-18x+16=0. Now this is a standard Quadratic equation. Use the quadratic Formula to solve this, you get   X= 8 or 1.

2. 1. Expand : x²+6x+9-8x-12=0    2. Simplify : x^2-2x-3=0  3. Solve as a quadratic equation : x= 3 or -1.

3. Same thing as the first one!

Hope I helped! <3

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation:

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.