Answer:
(a) 3900
(b) 4800
(c) 570000
Step-by-step explanation:
We have given
(a) [tex]64^2-14^2[/tex]
We know the algebraic equation[tex]a^2-b^2=(a+b)(a-b)[/tex]
So [tex]64^2-14^2=(64+14)(64-14)=3900[/tex]
(b) We know the algebraic equation[tex]a^2-b^2=(a+b)(a-b)[/tex]
[tex]112^-88^2=(112+88)(112-88)=4800[/tex]
(c) We know the algebraic equation[tex]a^2-b^2=(a+b)(a-b)[/tex]
[tex]785^2-215^2=(785+215)(785-215)=570000[/tex]
