Question

x-2=0 x-9=0 (x-2) (x-9) = 0

how would you compare the three equations?​

Answer 1

Answer:

2 and 9 both will satisfy.

Step-by-step explanation:

(i) x - 2 = 0

or, x = 2

(ii) x - 9 = 0

or, x = 9

(iii) (x-2) (x-9) = 0

It can be also written as ,

x - 2 = 0 and x - 9 = 0

or, x = 0 + 2 and x = 0 + 9

or, x = 2 and x = 9

x² - 9x - 2x - 18,

Now, We will put the value of x as 2,

or, (2)² - (9)(2) - (2)(2) - 18 = 0

or, 4 - 4 - 18 - 18 = 0

or,. 0 = 0

Similarly, We will put the value of x as 9,

Then, The answer will also be 0.

Therefore, the above expression satisfies both equations (i) and (ii).

Answer 2

Answer:

algebra, a quadratic equation is any equation that can be rearranged in standard form as ax^{2}+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no ax^2 term