Question

﹙ax＋b﹚﹙cx＋d﹚＋﹙ax－b﹚² a的x次方＝4 a的y次方＝6 求a的4x－3y次方及a的4x＋3y

Answer 1

﹙ax＋b﹚﹙cx＋d﹚＋﹙ax－b﹚²

=acx²+bcx+adx+bd+ax²-2abx+b²

a的x次方＝4 a的y次方＝6 求a的4x－3y次方及a的4x＋3y次方

a的4x－3y次方

=a的4x次方÷a的3y次方

=(a的x次方)^4÷(a的y次方)^3

=4^4÷6^3

=256÷216

=32/27

a的4x＋3y次方

=a的4x次方*a的3y次方

=(a的x次方)^4*(a的y次方)^3

=4^4*6^3

=256*216

=55296