Subtract 4abc from −6abc
∴−6abc−4abc=(−6−4)abc=−10abc
Use the identity (x+a)(x+b)=x2+(a+b)x+ab to find the following products: (abc−4)(abc−2)
Find the sum of:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)