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Maths-

General

Easy

Question

(𝑥 + 9)(𝑥 + 9) =

hint Hint:

The methods used to find the product of binomials are called special products.
Multiplying a number by itself is often called squaring.
For example (x + 3)(x + 3) = (x + 3)2

The correct answer is: 81

(𝑥 + 9)(𝑥 + 9) = x(x + 9) + 9(x + 9)
= x(x) + x(9) + 9(x) + 9(9)
= x² + 9x + 9x + 9²
= x² + 18x + 81
Final Answer:
Hence, the simplified value of (𝑥 + 9)(𝑥 + 9) is x² + 18x + 81.

This question can be easily solved by using the formula
(a + b)2 = a2 + 2ab + b2

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