1.

If 2 is a zero of the polynomial P of x is equal to 2 x square - 3 x + 7a find the value of a

Answer»
hey \: mate \: here \: is \: your \: answer...

2 {x}^{2} - 3x + 7a = 0
\: \: \: on \: putting \: x = 2
2(2) {}^{2} - 3(2) + 7a = 0
2(4) - 3(2) + 7a = 0
8 - 6 + 7a = 0
2 + 7a = 0
7a = - 2
a = \frac{ - 2}{7}

the \: value \: of \: a \: is \: \frac{ - 2}{7}


hope \: it \: helps.....


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