Question

Xsquare+15x-4200=? Find the roots

Answer 1

This equation can be solved by the quadratic equation formula of finding roots...

That is...

-b (+/-) √(b^2 - 4ac)

2a

Therefore,

Substituting,

a = 1

b = 15

c = -4200

Therefore substituting these values we get..

-15(+/-) √(15^2) - 4 (1)(-4200)

2(1)

If we solve this we get.... (Shown in pic)

Hope this helps...

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