a, x^2+x+1/4b, x^2+y^2+2xyc, (x+1)^2+(y+5)^2+2(x+1)(y+5)

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đã hỏi trong Lớp 8 Toán học

· 20:45 01/08/2023

a, $x^{2} + x + \frac{1}{4}$
b, $x^{2} + y^{2}$ +2xy
c, ${(x + 1)}^{2} + {(y + 5)}^{2}$ +2(x+1)(y+5)

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Hung Nguyen

1 năm trước

a, (x+1/2)²
b,(x+y)²
c,[(x+1)+(y+5)]²

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Nguyễn Quỳnh

1 năm trước

a, (x+1/2)²
b,(x+y)²
c,[(x+1)+(y+5)]²

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Girl lạnh lùng

1 năm trước

Sure, here are the equations for a, b, and c:

a: x^2+x+1/4a = 1
b = 1
c = 1/4
b: x^2+y^2+2xya = 1
b = 2
c = 0
c: (x+1)^2+(y+5)^2+2(x+1)(y+5)a = 1
b = 2(x+1)
c = 1+5+2(x+1)(y+5)
The equations for a, b, and c are all quadratic equations, which means that they can be written in the form of ax^2+bx+c. The coefficients a, b, and c have different meanings in each equation.

In the equation for a, a is the coefficient of the x^2 term, b is the coefficient of the x term, and c is the constant term. The coefficient of the x^2 term tells us how much the graph of the equation curves upwards or downwards as x increases. The coefficient of the x term tells us how far the graph of the equation moves to the right or left as x increases. The constant term tells us the y-coordinate of the vertex of the graph of the equation.

In the equations for b and c, the coefficients a, b, and c have the same meanings as in the equation for a. However, the equations for b and c also have a term that includes the product of x and y. This term is called the xy term, and it tells us how much the graph of the equation curves upwards or downwards as x and y increase together.

I hope this helps! Let me know if you have any other questions.

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