Question 697039: Solve each equation by factoring.
1. 4x2 – 17x – 15 = 0
2. 10x2 + 19x + 6 = 0
3. Solve 3x2 = 4,800 by using square roots.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Solve each equation by factoring.
1. 4x2 – 17x – 15 = 0
There are 2 possible pairs of factors for the 4, 1*4 and 2*2.
If they're both even, then you can't get an odd number for the x term, the 17.
15 = either 1*15 or 3*5
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2. 10x2 + 19x + 6 = 0
10 = 1*10 or 2*5
6 = 1*6 or 2*3
Notice the odd # of the x term.
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3. Solve 3x2 = 4,800 by using square roots.
Hint: divide by 3
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Use x^2 for x squared.
^ (Shift 6) for exponents.
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