Question

please tell need it super soon
only answer if you know it ​

Answer 1

hey yaar...

x^ + X - 4

f(2) = 2^ + 2 - 4

=> 4+2-4

=> 6-4 = 2.....

option (a)

Answer 2

$\bold{\huge{\underline \red{\mathbb{\pink{Hey!!! Mate}}}}}$

${f}^{ - 1} (2) \rightarrow \: f(x) = 2 \\ {x}^{2} + x - 4 = 2 \\ \rightarrow \: {x}^{2} + x - 6 = 0 \\ \rightarrow \: {x}^{2} + 3x - 2x - 6 = 0 \\ x(x + 3) - 2(x + 3) = 0 \\ (x - 2)(x + 3) = 0 \\ x = 2 \: and \: x = - 3$