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受欢迎的代数 >

c^2+4=4c

解答

c^{2} + 4 = 4 c

解答

c = 2

求解步骤

c^{2} + 4 = 4 c

将

4 c

para o lado esquerdo

c^{2} + 4 - 4 c = 0

改写成标准形式

a x^{2} + b x + c = 0

c^{2} - 4 c + 4 = 0

使用求根公式求解

c_{1, 2} = \frac{- ( - 4 ) \pm ( - 4 ) ^{2} - 4 \cdot 1 \cdot 4}{2 \cdot 1}

(- 4)^{2} - 4 \cdot 1 \cdot 4 = 0

c_{1, 2} = \frac{- ( - 4 ) \pm 0}{2 \cdot 1}

c = \frac{- ( - 4 )}{2 \cdot 1}

\frac{- ( - 4 )}{2 \cdot 1} = 2

c = 2

二次方程组的解是:

c = 2

作图

流行的例子

0.5 x (x + 1) = - 1

d^{0.4}x(x-1)-3(x^2-5)-x^2=(x-3)-(x+4)

d^{0.4} x (x - 1) - 3 (x^{2} - 5) - x^{2} = (x - 3) - (x + 4)

solvefor x,f(x+h)=x^2+h

so l v e f or x, f (x + h) = x^{2} + h

-332.65=(0.0004)x^2-0.7281x

- 332.65 = (0.0004) x^{2} - 0.7281 x

0.11 = (0.5 + x) x