Question

(5-х)(х+6)+х(х-8)=0​

Answer 1

Объяснение:

смотри.....................

Answer 2

Объяснение:

Убираем скобки и получаем 5х+30-х²-6х+х²-8х=0

сокращаем и получаем -9х+30=0

-9х=-30

х= 10/3

Answer 3

To solve the equation (5-х)(х+6)+х(х-8)=0, we can start by expanding the brackets and simplifying the expression:

(5-х)(х+6) + х(х-8) = 0

First, let's expand the brackets:

(5-х)(х+6) = 5х + 30 - х^2 - 6х = -х^2 - х + 30

Next, we'll expand the second term:

х(х-8) = х^2 - 8х

Now, we substitute these expanded expressions back into the original equation:

(-х^2 - х + 30) + (х^2 - 8х) = 0

Simplifying further:

-х^2 - х + 30 + х^2 - 8х = 0

Combine like terms:

-х^2 + х^2 - х - 8х + 30 = 0

Simplify:

-9х - 9х + 30 = 0

Combine like terms again:

-18х + 30 = 0

To isolate х, we'll move 30 to the other side by subtracting it from both sides:

-18х = -30

Divide both sides by -18:

х = (-30) / (-18)

Simplifying the fraction:

х = 5/3

Therefore, the solution to the equation (5-х)(х+6)+х(х-8) = 0 is х = 5/3.