Find the roots of the equation by factorisation.
Answer: The roots of the equation are and .
Step-by-step solution
Step 1: Identify coefficients and split the middle term
To factorize a quadratic equation of the form , we need to find two numbers whose product is and whose sum is . Here, , , and . So, we need two numbers whose product is and whose sum is . These numbers are and . We then split the middle term, , into .
Step 2: Factor by grouping
Now, we group the terms and factor out the common factors from each pair. From the first two terms, , we factor out , leaving . From the last two terms, , we factor out , also leaving .
Step 3: Factor the common binomial
Since is a common factor in both terms, we can factor it out, which gives us the product of two binomials: .
Step 4: Solve for x
For the product of two factors to be zero, at least one of the factors must be zero. So, we set each factor equal to zero and solve for . This gives us the two roots of the quadratic equation.
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