7×3四次方+8×3³-(-13)×3²利用因式分解法计算.急.
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/30 08:41:53
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7×3四次方+8×3³-(-13)×3²利用因式分解法计算.急.
7×3四次方+8×3³-(-13)×3²利用因式分解法计算.
急.
7×3四次方+8×3³-(-13)×3²利用因式分解法计算.急.
7×3四次方+8×3³-(-13)×3²
=3²×(7×3²+8×3-13)
=9×(42+24-13)
=9×53
=477
7×3四次方+8×3³-(-13)×3²
=3²×(7×3²+8×3+13)
=9×(63+24+13)
=900