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受欢迎的代数 >

化简 x^2+(3x)^2-x^2(1/2)

解答

化简

x^{2} + (3 x)^{2} - x^{2} (\frac{1}{2})

解答

\frac{19}{2} x^{2}

求解步骤

x^{2} + (3 x)^{2} - x^{2} (\frac{1}{2})

化简

(3 x)^{2} : 9 x^{2}

= x^{2} + 9 x^{2} - x^{2} \frac{1}{2}

同类项相加:

x^{2} + 9 x^{2} = 10 x^{2}

= 10 x^{2} - x^{2} \frac{1}{2}

因式分解出通项

x^{2}

= x^{2} (10 - \frac{1}{2})

10 - \frac{1}{2} = \frac{19}{2}

= x^{2} \frac{19}{2}

= \frac{19}{2} x^{2}

流行的例子

化简 (4/(5p-2))^3

s im pl i f y (\frac{4}{5 p - 2})^{3}

s im pl i f y (x^{3})^{7}

因式分解 16x^2-4y^2

f a c t or 16 x^{2} - 4 y^{2}

因式分解 3x^2+12xy+9y^2

f a c t or 3 x^{2} + 12 x y + 9 y^{2}

因式分解 25x^2-36y^2-10x+1

f a c t or 25 x^{2} - 36 y^{2} - 10 x + 1