if 3 is a zero of the polynomial p(x) =2xsquare -5x+7a find the value of a
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Step-by-step explanation:
let p(x) = 2x² - 5x + 7a
since x = 3 is a factor of p(x)
therefore,
2(3)² - 5(3) + 7a = 0
=》18 - 15 +7a = 0
=》3 + 7a = 0
=》a = -3/7
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