Find the value of the discrimination and the number of real-number solutions in the below equation:
x^2+7x+8=0
can you explain how to do this step-by-step? i have more questions similar to this one that i need to be able to answer.
in advanced : )

the answer is 62.8 cubic units

2

step-by-step explanation:

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be

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