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$4a^2+9a-9=0$
Learn how to solve problems step by step online. Find the break even points of the expression 4a^2+9a=9. Rewrite the equation. Factor the trinomial 4a^2+9a-9 of the form ax^2+bx+c, first, make the product of 4 and -9. Now, find two numbers that multiplied give us -36 and add up to 9. Rewrite the original expression.