Question

b. C = {x : x

2 + 7x – 8 = 0, x ∈ R} finite or Infinite ​

Answer 1

finite because a quadratic equation has only two roots.

Answer 2

Answer:

C is finite set .

Explanation:

x²+7x-8=0

=> x² +8x-1x-8=0

=> x(x+8)-1(x+8)=0

=>(x+8)(x-1)=0

=> x+8=0 or x-1=0

=> x=-8 or x=1

Now,

C={x:x²+7x-8=0, x€R}

C = { -8,1 }

C is a finite set .

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