Question

find K if 2 is a zero of 3 X square + 17 X + k​

Answer 1

If 2 is the zero

then,

putting x = 2 on equation

3x² + 17x + k

3(2)² + 17 × 2 + k = 0

3 × 4 + 34 + k = 0

12 + 34 + k = 0

46 + k = 0

k = - 46

Answer 2

Heya❤

$p(x) = 3x {}^{2} + 17x + k = 0 \\ p(x) = 0 \\ p(x) = 3(2) {}^{2} + 17(2) + k \\ p(2) = 12 + 34 + k \\ 46 + k = 0 \\ k = - 46$

Hope it helps you

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