Please hurry! I'll mark brainliest if you're fast!
2 answers:
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Pemdas, so exponent before multiply
so do a^-1/2 then multiply it by 2
remember that![x^ \frac{m}{n}= \sqrt[n]{x^m}](https://tex.z-dn.net/?f=x%5E%20%5Cfrac%7Bm%7D%7Bn%7D%3D%20%5Csqrt%5Bn%5D%7Bx%5Em%7D%20%20)
and
therefor,
the we multiply by 2
so do a^-1/2 then multiply it by 2
remember that
therefor,
the we multiply by 2
Answer:
1350
Step-by-step explanation:
use binomial general term expression for (r+1)th term
get the power of x in terms of r.
equate the expression to -2 and solve for r.
replace value of r and calculate the coefficient.
