Question

(x + 3) (x - 3) = 27​

Answer 1

Step-by-step explanation:

given (x+3) (x-3) =27

we have formula (a+b)(a-b)=a^2-b^2

therefore x^2-3^2=27

x^2-9=27

x^2= 27+9

x^2= 36

x= sqrt(36)

x= +/- 6

Answer 2

Answer:

x=6

${x}^{2} - {3}^{2} = 27 \\ {x}^{2} = 27 + 9 \\ \\ {x }^{2} = 36 \\ x = \sqrt{36 \\ x = 6$