Sergey is solving 5x2 + 20x – 7 = 0. which steps could he use to solve the quadratic equation by completing the square? check all that apply. 5(x2 + 4x + 4) = –7 + 20 x + 2 = 5(x2 + 4x) = 7 5(x2 + 4x + 4) = 7 + 20 5(x2 + 4x) = –7 x + 2 =

2,3,4 are the answers on edge

Step-by-step explanation:

Option 2 and 3 is correct.

Step-by-step explanation:

Case (I).

Given equation is

Firstly, we will add of 7 in both sides

Now, same variable of opposite sign is cancelled

Now, taking 5 common from left side

Case (II).

Given equation

Firstly, we will add of 7 in both sides

Now, we will add of 20 in both sides

Now, taking common of 5 from left side

So, The next step on solving completing square is and

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x