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受欢迎的代数 >

(x+3)^2-5=9

解答

(x + 3)^{2} - 5 = 9

解答

x = 14 - 3, x = - 14 - 3

+1

十进制

x = 0.74165 \dots, x = - 6.74165 \dots

求解步骤

(x + 3)^{2} - 5 = 9

将

5

到右边

(x + 3)^{2} = 14

对于

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

解为

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

解

x + 3 = 14 : x = 14 - 3

解

x + 3 = - 14 : x = - 14 - 3

二次方程组的解是:

x = 14 - 3, x = - 14 - 3

作图

流行的例子

(20+x)(30+x)=1690

(20 + x) (30 + x) = 1690

x^{2} + 3 x + 3 = 10

x(x+2)^2=(x+1)^3+5

x (x + 2)^{2} = (x + 1)^{3} + 5

quadraticformula x^2+2x+4=0

q u a d r a t i c f or m u l a x^{2} + 2 x + 4 = 0

solvefor x,(x-1)^2+(y-2)^2=0

so l v e f or x, (x - 1)^{2} + (y - 2)^{2} = 0