Please help will brainlist I need his done

Work shown below!

Step-by-step explanation:

1. (x - 3)(x + 7) = 0

x - 3 = 0

Add 3 to both sides;

x = 3

x + 7 = 0

Subtract 7 from both sides;

x = -7

2. (2x + 6)(x - 1) = 0

2x + 6 = 0

Subtract 6 from both sides;

2x = -6

Divide both sides by 2;

x = -3

x - 1 = 0

Add 1 to both sides;

x = 1

3. (4x - 2)(x + 4) = 0

4x - 2 = 0

Add 2 to both sides;

4x = 2

Divide both sides by 4;

x + 4 = 0

Subtract 4 from both sides;

x = -4

4. (5x - 1)(3x + 9) = 0

5x - 1 = 0

Add 1 to both sides;

5x = 1

Divide both sides by 5;

3x + 9 = 0

Subtract 9 from both sides;

3x = -9

Divide both sides by 3;

x = -3

Step-by-step explanation:

#1 is x = 3,-7

#2 is x  =  − 3, 1

#3 is x = 1/2,-4

#4 is x = 1/5,-3

the graph on the bottom right

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.