Verified answer

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x²+36x+324=0

=> (x+18)(x+18) = 0

=> (x+18)² = 0

=> x= - 18

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Hope This Helps !

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The equation u mentioned is a quadratic one.....

Solving it by middle term break up:

(remember: 18*18=324 & 18+18=36)

x² + 18x + 18x + 324 = 0

x(x + 18) + 18(x + 18) = 0

(x+18)(x+18) = 0

x = 0 - 18 (both expressions in the brackets above were same, so i took one of them)

So x will be -18

Hope my answer will help

factor:

18*18=324

18+18=36

(x+18)(x+18) = 0

(x+18)^2 = 0

x= -18

\/324 = 18

USE FORMULA ( a + b) ^2 = a^2 + 2ab + b^2

Here a = x

b = 18

ANSWER = ( x + 18)^2