simplify 2 power -4/3 and 2 power 1/3 . please. listen again the power of both the value I. -4/3 and 1/3
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Answer:
Let the marks in Math be x and in English (30−x).
New marks in Math =2+x
New marks in English =27−x
(2+x)(27−x)=210
54−2x+27x−x
2
=210
x
2
−25x+156=0
x
2
−12x−13x+156=0
x(x−12)−13(x−12)=0
(x−12)(x−13)=0
x=12,13
If her marks in Math is 12, then in English she got 18.
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