式の値L4-1-5(6問)
x=8,y=-9のとき、次の式の値を求めよ。
-15xy2÷16y3÷54x2
解答○ ×23x2÷38x3y×(-5y2)
解答○ ×43x2y3×(-221x2)×7y÷(-x3y3)
解答○ ×16x3×(-38x4y2)÷(-310x5y4)×(-215y3)
解答○ ×-83x2y÷(-13x3y2)÷(-16x2y4)×(-92x2y3)
解答○ ×-5x3÷152x2y3÷821xy2×(-314x2y4)
解答○ ×問題と解答
-15xy2÷16y3÷54x21 23x2÷38x3y×(-5y2)10 43x2y3×(-221x2)×7y÷(-x3y3)-64 16x3×(-38x4y2)÷(-310x5y4)×(-215y3)16 -83x2y÷(-13x3y2)÷(-16x2y4)×(-92x2y3)13 -5x3÷152x2y3÷821xy2×(-314x2y4)-83
