Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

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Apr 1, 2025 · Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD (4, 2) = 2. In the following intermediate step, cancel by a common factor of …

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y=x^2+1 (Graph Example), 4x+2=2(x+6) (Solve Example) Algebra Calculator is a calculator that gives step-by-step help on algebra problems. See More Examples »

Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

Solve an equation, inequality or a system.

Free math problem solver answers your algebra homework questions with step-by-step explanations.

把开头乘上去的 x^2-1 也就是 (x-1)(x+1) 约去，就有. x^4+x^2+1=(x^2-x+1)(x^2+x+1)\\\\ 右端这两个二次式在实数范围已经无法分解了，因为它们 判别式 为负。这样就完成了工作。