Question

if a and b are zeroes of x2+5x+6 find the value of a-1 +b-1

Answer 1

Answer:

-7

Step-by-step explanation:

x^2+5x+6=0

x^2+3x+2x+6=0

X(X+3)+2(X+3)

(X+3)(X+2)=0

X=-3or-2

now

a-1+b-1

-3-1-2-1

-7

(You can take a and b either as -3 or -2 or -2 or -3.)

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