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san4es73 [151]
2 years ago
12

[Maximum mark: 6]

Mathematics
1 answer:
DENIUS [597]2 years ago
3 0

The value of p is 0.6

<h3>What is a binomial expression?</h3>

A binomial expression is an algebraic expression that contains only two terms.

Binomial expansions are used to expand exponents of two terms

The expression is given as:

px^2(5 + px)^8

When the expression in bracket is expanded, one of its term is:

px^2(5 + px)^8 = px^2 (..........70 \times p^4 \times x^4...........)

So, we have:

px^2(5 + px)^8 = px^2 (..........70 \times 5^4 \times (px)^4...........)

px^2(5 + px)^8 = px^2 (..........70 \times 625 \times (px)^4...........)

px^2(5 + px)^8 = px^2 (..........43750 (px)^4...........)

px^2(5 + px)^8 = px^2 (..........43750 p^4x^4...........)

Expand the bracket, to get the coefficient of x^6

px^2(5 + px)^8 = px^2 (..........43750 p^5x^6...........)

The coefficient equals 3402.

So, we have:

43750p^5 = 3402

Divide both sides by 43750

p^5 = 0.07776

Take the 5th root of both sides

p = 0.6

Hence, the value of p is 0.6

Read more about binomial expansions at:

brainly.com/question/13602562

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