2 years ago

Find all real and complex solutions by completing the square.

1 answer:

4 0

Y^2+4y=-8
add 8 both sides
y^2+4y+8=0 in the form of ax²+bx+c=0
Factor it
by formula
-b+-(√b²-4ac)/2a
-4+-(√16-32)/2*1
-4+-(√-16)/2
-4+-4i/2
-2+-2i where√-1=i

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it's a week before the maths festival a maths exhibition costa £75.40 and so far 12 have been bought. what's the total income so

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Rex's puppy is 5 years younger than his other dog. If the other dog is x years old, what is an expression for the puppy's age?

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Answer:

Value of y is 1536.

Step-by-step explanation:

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3 years ago