Q. Which of the following is equivalent to (2c2a+6)(ca+6) ?Choose 1 answer:(A) 2c(B) a+3a+6(C) 2(a+3)a+6(D) 1
Write Expression: Write down the given expression and identify the structure.The given expression is a complex fractions" target="_blank" class="backlink">fraction, which means it is a fraction where the numerator and the denominator are themselves fractions.The expression is: (2c2a+6)(ca+6)
Identify Structure: Simplify the complex fraction by multiplying the numerator and the denominator by the reciprocal of the denominator.To simplify a complex fraction, we can multiply the numerator and the denominator by the reciprocal of the denominator of the complex fraction.Reciprocal of (2c2a+6) is 2a+62c.So, we have: (ca+6)×2a+62c
Simplify by Multiplying: Perform the multiplication.Now, multiply the numerators together and the denominators together.c×(2a+6)(a+6)×(2c)
Perform Multiplication: Simplify the expression by canceling out common factors.We can cancel out the 'c' from the numerator and the denominator.(2(a+6))/(2a+6)
Cancel Common Factors: Further simplify the expression.Since there is a common factor of 2 in the numerator, we can cancel it out with the 2 in the denominator.(a+6)/(a+3)
Further Simplify: Match the simplified expression with the given options.The simplified expression (a+6)/(a+3) matches with option (B).
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