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2 years ago

Radhika buys papaya at the rate of p(x) = x² – 12x – 220 per kg

Mathematics

1 answer:

Svet_ta [14]2 years ago

3 0

Answer:

(i) The factors of the given polynomial is (x – 22) and (x + 10)

(ii) If she purchase 5kg papaya then she pays 110

Step-by-step explanation:

<h3><u>Given</u>;</h3>

p(x) = x² – 12x – 220 per kg

The factors of the given polynomial
if she purchase 5kg papaya, what money she have to pay?

Now,

x² – 12x – 220 = 0

Splitting the middle term

x² – 22x + 10x – 220 = 0

x(x – 22) + 10(x – 22) = 0

(x – 22) + (x + 10) = 0

x – 22 = 0 or x + 10= 0

x = 22 or x = -10

Here, (-10) is the negative value hence it is not possible

So, The value of x is 22

The factors of the given polynomial is (x – 22) and (x + 10)

if she purchase 5kg papaya then,

we know the price of 1 kg papaya i.e., 22 per kg

So,

5 × 22 = 110

Thus, if she purchase 5kg papaya then she pays 110

<u>-TheUnknownScientist 72</u>

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