3 years ago

Calcula el valor de A - B, si se sabe que: A=

Mathematics

1 answer:

SCORPION-xisa [38]3 years ago

3 0

Answer:

$P=\frac{1}{2}$

Step-by-step explanation:

$P=\frac{(x+3)^2-(x-3)^2}{(x+6)^2-(x-6)^2}$

$=\frac{[(x+3)-(x-3)][(x+3)+(x-3)]}{[(x+6)-(x-6)][(x+6)+(x-6)]}$

$=\frac{6(2x)}{12(2x)}$

$=\frac{1}{2}$

Por tanto, el valor de P será $\frac{1}{2}$

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lianna [129]

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3 years ago

Solve each equation by graphing the related function. If th equation has no real number solution, write no solution. X^2 + 7 = 0

Brrunno [24]

Answer:
The equation x² + 7 = 0 has no solution

Explanation:
1- using graph:
To solve the equation means graphically means to find the x-intercepts.
The attached image shows the graph of the given function.
We can note that there are no x-intercepts. This means that the given function has no real solutions

2- using algebra:
To solve the equation algebraically means to find the values of x that would make the equation equal to zero.
Solving the given equation, we would find that:
x² + 7 = 0
x² = -7
x = <span>± </span>√-7
The square root of a negative number will always give imaginary values. This means that the equation has no real solutions

Hope this helps :)