Question

If the expression y = 8x - x² - 15 is negative then complete x lies in the interval​

Answer 1

Answer:

x

2

−5x−14>0

x

2

−7x+2x−14>0

(x−7)(x+2)>0

⇒x<−2 or x>7

Hence for x∈(−∞,−2)∪(2,∞), the expression x

2

−5x−14 is positive.

Step-by-step explanation:

it's a different question,for you to understand

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Answer 2

Answer:

y-(8*x-x^2-15)=0

y + x2 - 8x + 15 = 0

Solve y+x2-8x+15 = 0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

We shall not handle this type of equations at this time.