Question

the coefficient of x2 in -7x2/8 is-


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Answer 1

Answer

Coefficient of x² in ax ²+bx+c=0 is a.

Hence, coefficients of x² in

(i) 2+x² +x is 1

(ii) 2−x² +x³is −1

(iii) 2πx+² +x is 2π