What is the vertex of y=2x2+5x−13−4(x−1)2?
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Answered by
8
Y=2x^2+5x-13-8x+8
Y=2x^2-3x-5
Y= 3+_root9+40/4
=> 3+_ root49/4
=>3+_7/4
=>3+7/4 or =>3-7/4
=>12+7/4 or =>12-7/4
=>19/4 or =>5/4
=>4.75 or =>1.25
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Answered by
1
Let's simplify step-by-step.
2x2+5x−13−4(x−1)(2)
Distribute:
=2x2+5x+−13+−8x+8
Combine Like Terms:
=2x2+5x+−13+−8x+8
=(2x2)+(5x+−8x)+(−13+8)
=2x2+−3x+−5
=2x2−3x−5
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