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 entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it