15 (3a plus 1/3) Write a equivalent expression
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Why?
Because if you draw a line from A to D to make a triangle AED, then triangle all angle add up equal 180.
Because if you draw a line from A to D to make a triangle AED, then triangle all angle add up equal 180.
To find the zeroes you make the function equal to zero and then solve.
Then factor out the x to get a quadratic inside the parentheses.
Factor the inside quadratic formula.
Lastly, use the zero product property to solve.
Then factor out the x to get a quadratic inside the parentheses.
Factor the inside quadratic formula.
Lastly, use the zero product property to solve.