Question

2个,(√2X+1)(√2X-6)=化解?(X+6))(X-M)=化解?

Answer 1

(√2X+1)(√2X-6)=√2X(√2X-6)+1*(√2X-6)

=2X-6*√2X+√2X-6

=2X-5√2X-6

(X+6)(X-M)=X(X-M)+6(X-M)

=X^2-MX+6X-6M

=X^2+(6-M)X-6M