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受欢迎的代数 >

solvefor a,(a+sqrt(b))^2=49+12sqrt(b)

解答

求解

a, (a + b)^{2} = 49 + 12 b

解答

a = 49 + 12 b - b, a = - 49 + 12 b - b

求解步骤

(a + b)^{2} = 49 + 12 b

对于

(g (x))^{2} = f (a)

解为

g (x) = f (a), - f (a)

解

a + b = 49 + 12 b : a = 49 + 12 b - b

解

a + b = - 49 + 12 b : a = - 49 + 12 b - b

二次方程组的解是:

a = 49 + 12 b - b, a = - 49 + 12 b - b

作图

流行的例子

h^{2} + 5 h = 155

h^{2} - 7 h = 0

solvefor y,z=y^2+(x^3)/3+xy

so l v e f or y, z = y^{2} + \frac{x ^{3}}{3} + x y

(20+2x)(10+2x)=200+64

(20 + 2 x) (10 + 2 x) = 200 + 64

11c^2+27c+14=2c^2

11 c^{2} + 27 c + 14 = 2 c^{2}