Question

check whether -2√2 is zero of the polynomial x squad +√2x-4​

Answer 1

Answer:

Put x= -2√2 in x²+√2x-4

so, =(-2√2)²+√2(-2√2)-4

=8-8-4

=0-4

= -4

Since the remainder is -4 which is not equal to zero, -2√2 is not the zero of the given polynomial.