Question

x 2 - 3x -9 = 0 [Solve by completing square method​

Answer 1

Answer:

Step-by-step explanation:

x² + 3x - 9 = 0

x² + 9( x ) ( 3/9 ) + ( 3/9 )² - ( 3/9 )² +1=0

( x + 3/9 )² - 5/4 = 0

Multiple and solve it

Answer 2

Answer:

$\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$

here is your answer

note:- it can't be solve by completing the square method as coefficient of x^2 is 1 so if we divide we again found the given equation so we simply factorise it.

see in the picture above attach for complete solution step by step:-

Hope it helps you..!!!

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Thankyou:)