展开 (x+6)^2

解答

展开

(x + 6)^{2}

x^{2} + 12 x + 36

求解步骤

(x + 6)^{2}

使用完全平方公式:

(a + b)^{2} = a^{2} + 2 ab + b^{2}

(x + 6)^{2} = x^{2} + 2 x \cdot 6 + 6^{2}

= x^{2} + 2 x \cdot 6 + 6^{2}

化简

x^{2} + 2 x \cdot 6 + 6^{2} : x^{2} + 12 x + 36

= x^{2} + 12 x + 36

s im pl i f y - ln (4)

5.5 \cdot 0.4 = \frac{3}{44} \cdot 0.082 \cdot T

\frac{x}{2} \geq \frac{35}{x + 1} + 1

f a c t or g^{2} - 2 g - 63

\frac{x ^{2} ( 5 + x ) ( x + 6 )}{( x + 7 ) ( x - 3 )} \geq 0