Question

9x²-9(a+b)x+2a²+5ab+3b²=0​

Answer 1

QUESTION -

Solve quadratic equation -

9x²-9(a+b)x+2a²+5ab+3b²=0

ANSWER -

9x² - 9(a+b)x + (2a² + 5ab + 2b²)=0

. . . . . . . . . ___________________________

-(-9(a+b)) ± √(-9(a+b))² - 4(9)(2a² + 5ab + 2b²)

------------------------------------------------------------------ = x

. . . . . . . . . . . . . . 2(9)

. . . . . . . .________________________________

9a+9b ± √81a²+162ab+81b² - 72a² - 180ab - 72b²

------------------------------------------------------------------------ = x

. . . . . . . . . . . . . . 18

. . . . . . . ._____________

9a+9b ± √9a² -18ab + 9b²

-------------------------------------- = x

. . . . . .18

. . . . . . . .________

9a+9b ± √(3a - 3b)²

----------------------------- = x

. . . . . .18

9a+9b ± (3a - 3b)

------------------------- = x

. . . . . .18

12a + 6b

------------- = x

. . 18

2a + b

----------- = x <==1st ANSWER

. . 3

6a + 12b

------------- = x

. . 18

a + 2b

----------- = x <==2nd ANSWER

. . 3

Answer 2

Answer:

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