1.

x2 – 7 = ……………. A) (x + 7) (x – 7) B)(x + √7)(x – √7) C) (x – 3) (x + 4)D) None

Answer»

B)(x + √7)(x – √7)

Correct option is (B)(x + √7)(x – √7)

\(x^2-7=x^2-(\sqrt7)^2\)

\((x+\sqrt7)(x–\sqrt7)\)



Discussion

No Comment Found