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Grade 12Algebra

If ‘a’ belongs to ‘Z’ and the equation (x-a)(x-10

If
‘a’ belongs to ‘Z’
and the equation (x-a)(x-10)+1=0

has integral roots, then values of ‘a’ are

chaitanya

8 Years agoGrade 12

1 Answer

Arun

8 Years ago

Dear student

on simplifying

x^2 –(a +10)x + 10a + 1 = 0

x^2 –(a +10)x + (10a + 1) = 0

now

if we use formula method to find the roots. we will see that

a = 8 and 12 are the ony solutions.

Regards

Arun (askIITians forum expert)

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