Brainliest and 20 points

Stay healthy out there! (too many answers just to put here)

Step-by-step explanation:

1)

x^2 + x - 56 = 0

x^2 + 8x - 7x - 56 = 0

x(x+8)-7(x+8)

(x-7)(x+8)

x-7= 0

x = 7

x+8=0

x = - 8

2)

x = 7, -8

3)

7^2+7=56 (good)

-8^2-8 = 56 (good)

1)

x^2-11x+30=0

x^2-6x-5x+30

x(x-6)-5(x-6)

(x-5)(x-6)

(equal them to zero)

2)

x= 5, 6

3)

5^2-11(5)+30 = 0 (good)

6^2-11(6)+30 = 0 (good)

step-by-step explanation:

how many centimeters did the level of the salsa go down by?