Question

4,5²-1.5²/0.3×0.7×0.3 вычислить

Answer 1

4,5²-1.5²/0.3×0.7×0.3

81/4-10×1,5²/3×7/10×3/10

81/4-(3/2)²×7×1/10

81/4-9/4×7×1/10

81/4-63/40

747/40

Ответ 747/40