\fdO'^ - Old Forge Coal Mines

ALGEBRA. 105
(198)
a» - a» - 2a - 1 ) 2a« - 4a» - 5a* + 3fl» + 10a* + 7a 4- 3 ( 2a» - 2a» - 3a - 2
2a« — 2a* — 4a* — 2a» Ans.
-2a*- a* + 5a3 + 10a«
— 2a* + 2a* + 4a» + 2a»
-3a»+ a« + 8a» + 7a
— 3a* 4- 3a3 + 6a« + 3a
— 2a» 4- 2a« + 4a + 2
— 2a3 4- 2a« + 4a + 2
(199) (a) Factoring according to Art. 452, we have
^y {x' — 64). Factoring {x" — 64), according to Art. 463,
we have
{x* + 8) {x' - 8).
Art. 466, rule. ;tr' + 8 = (^ + 2) {x"" - %x + 4).
Art. 466, rule, x* -^={x - 2) {x^ + 2.r + 4).
Therefore, xY — 64^y = xy {x + 2) (-r'-2^+4) (^'—2)
{x' + 2.r + 4), or xy {x + 2) {x - 2) {x' +2^+4)
(V -2x+4). Ans.
(/^) a' — d" — c' -\-l — 2^ + 2