A street sign is 87 inches tall. How tall is it in feet and inches?
2 answers:
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<h2>Steps</h2>
So to find the solutions, I will be factoring by grouping. Firstly, what two terms have a product of 12x² and a sum of -8x? That would be -2x and -6x. Replace -8x with -2x - 6x:
Next, factor 4x² - 2x and -6x + 3 separately. Make sure that they have the same quantity on the inside of the parentheses:
Now you can rewrite it as:
Now, apply the zero product property and solve:
<u>In short, x = 3/2 (1.5) and 1/2 (0.5).</u>