3 years ago

Solve the system below.

1 answer:

6 0

To solve this system, let y = x^2 - 4 = -4. Then y = x^2. This is true for all x. There is no single numerical solution. y = x^2 is a function with infinitely many inputs/outputs.

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Step-by-step explanation:

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Juliette [100K]

Factor
in form
ax²+bx+c form
use the ac method
1. mulitply a and c
2. factor the result such that the 2 factors add to b
3. split b into those 2 factors
4. group the terms
5. undistribute common factors
6. undistribute again

first multiply ac
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now
what 2 numbers multiply to 20 and add to 12
2 and 10
4x²+2x+10x+5
group
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undistribute
2x(2x+1)+5(2x+1)
undistribute the (2x+1)
(2x+1)(2x+5) is factored form whih you have there, nice

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