Question

РЕШИТЕ!!! (x - 7)(x + 2) = 0

Answer 1

Произведение равно нулю тогда,когда хотя бы один из множителей равен нулю ,тогда:

x-7=0

x=7

или

x+2=0

x=-2

Ответ: x=-2 ; x = 7

Answer 2

X^2+2x-7x-14=0
x^2-5x-14=0
D= 25- 4* (-14)= 25 +56=81, корень из D= 9
X1= 5+9/2=7
X2= 5-9/2= -2

Answer 3

To solve the given equation, you need to find the values of "x" that satisfy the equation:

(x - 7)(x + 2) = 0

To do that, you can use the zero-product property, which states that if the product of two factors is equal to zero, then at least one of the factors must be equal to zero.

So, set each factor to zero and solve for "x":

1. x - 7 = 0 Add 7 to both sides: x = 7

2. x + 2 = 0 Subtract 2 from both sides: x = -2

The solutions for "x" are x = 7 and x = -2. These are the values that make the equation true when substituted back into it.