Find the roots of the 2
+ 5 − 12 = 0 by quadratic formula method.
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Answer:
The answer is below
Step-by-step explanation:
7+5-12=0
Answered by
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Step-by-step explanation:
2x²+5x-12=0
a=2,b=5,c= -12
-b±√b²-4ac/2a
-5±√5²-4(2)(-12)/2(2)
= -5±√25+96/4
=-5±√121/4
= -5±11/4
= -5+11/4. (or) = -5-11/4
= 6/4. (or)= -16/4
=3/2. (or)= -4
roots are 3/2 and -4
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