3 years ago

Is x^2-49 a difference of two squares?

1 answer:

4 0

Yes! To factor this, you would put it into expanded form: (x+7)(x-7). This is the only way to solve this and eliminate the x^1 term.

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just olya [345]

Answer:

1/0

Step-by-step explanation:

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scoray [572]

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3 years ago

swat32

There are infinitely many solutions.

Algebraically, we can eliminate $z$ and try to solve for $x,y$ :

$x+y+z=1\implies z=1-x-y$

Then

$x^2+y^2+(1-x-y)^2=1$

$\implies x^2+y^2+1-2x+x^2-2y+y^2+2xy=1$

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4 years ago

Vilka [71]

Answer:

Since x is an exponent, y = 15 × 8ˣ represents an exponential function.

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3 years ago