Question

The root of ( x+3)²-9 =0 are

Answer 1

Answer:

-6

Step-by-step explanation:

(x+3)²-9=0

x²+9+6x = 9

x²+6x = 0

x(x+6) = 0

x+6 = 0

x = -6

The root is -6

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Answer 2

Answer:

Question :-

➠ (x + 3)² - 9 = 0

Formula used :-

➪ a² - b²

➭ (a + b) (a - b)

Answer :-

➠ (x + 3)² - 9 = 0

➻ (x + 3)² - (3)² = 0

➻ (x + 3 + 3) (x + 3 - 3) = 0

➻ (x + 6) (x) = 0

➻ x² + 6x = 0

➻ x(x + 6 ) = 0

➻ x + 6 = 0

➻ x = - 6

∴ The value of (x + 3)² - 9 is - 6