问题 Simplify the expression 2x2−112x Evaluate 2x2−14x×8解题方案 2x2−112x 显示解题方案 Factor the expression 2x(x−56) Evaluate 2x2−14x×8Multiply the terms 2x2−112xRewrite the expression 2x×x−2x×56解题方案 2x(x−56) 显示解题方案 Find the roots x1=0,x2=56 Evaluate 2x2−14x×8To find the roots of the expression,set the expression equal to 0 2x2−14x×8=0Multiply the terms 2x2−112x=0Factor the expression 更多步骤 Evaluate 2x2−112xRewrite the expression 2x×x−2x×56Factor out 2x from the expression 2x(x−56) 2x(x−56)=0When the product of factors equals 0,at least one factor is 0 2x=0x−56=0Solve the equation for x x=0x−56=0Solve the equation for x 更多步骤 Evaluate x−56=0Move the constant to the right-hand side and change its sign x=0+56Removing 0 doesn't change the value,so remove it from the expression x=56 x=0x=56解题方案 x1=0,x2=56 显示解题方案
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微积分
三角学
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