Question

x2-11x+ 28
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x2-4x-21 Simplify the expression

Answer 1

You'll need to factor both numerator and denominator, separately. Come back after you've done that, OK?

Answer 2

have another look at number two parveztrina

Answer 3

x^2 - 4x - 21 = (x + 3)(x - 7)

Answer 4

so you have