Question

x² + x + 2 = 0
Is 2 coefficient of 1 ?

Answer 1

Answer:

x²+x+2=0. 2

/\

2 -1

x²+2x-x+2=0

x(x+2)-1(x+2)

(x+2)(x-1)

x=-2 or x=1

Answer 2

Step-by-step explanation:

Coefficient of x

2

in ax

2

+bx+c=0 is a.

Hence, coefficients of x

2

in

(i) 2+x

2

+x is 1

(ii) 2−x

2

+x

3

is −1

(iii)

2

π

x

2

+x is

2

π

(iv)

2

x−1 is 0

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