Let alpha,beta be the roots of 2x^2-15x+4=0,then the equation whose roots are alpha+3,beta+3 ?

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You need to remember how to use the roots to form a quadratic equation such that:

`x^2 - sx + p = 0`

Since s expresses the sum of roots and p expresses the product of roots, hence you may form the equation that has the roots `alpha + 3 ` and `beta + 3`  such that:

`x^2 - (alpha + 3 + beta + 3)x + (alpha + 3)(beta + 3) = 0`

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