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

answer: idk

step-by-step explanation:

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5