Question

Using (x+a)(x+b)=x^2+(a+b)x+ab,find
9.7x9.8​

Answer 1

95.06Step-by-step explanation:TAKE x=9, a=.7, b=.8

then (x+a) (x+b)=9^2 + (.7+.8)9 + (.7*.8)

=81 + 13.5 + .56

=95.06