In Exercises 31–48, (a) factor the given expression, and (b) set the expression equal to zero and solve for the unknown (x in the odd-numbered exercises and y in the even-numbered exercises.)
To calculate: The factors of the expression .
The expression, .
Steps to calculate the factors of quadratic equation by trial and error method,
Step1: Factor as with positive.
Step2: Factor c as .
Step 3: Check if
If yes, then are the factors.
Step 4: If not, try other factorization of and c and repeat all the steps.
The distributive law,
Where, a, b and c are any real numbers.
Difference of two squares,
Where, a and b are the real numbers.
Consider the expression,
Rewrite the above expression as,
Substitute in the above expression,
Factor of are .
The factors of are .
Consider the factors and
To calculate: The value of y when the expression is equal to zero.
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