Question

show that x is equal to minus 2 is a solution of 3 X square + 13 + 14 is equal to zero

Answer 1

★Heya !!

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Here's the Answer to the query :

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\underline{\Large\mathbf{QUESTION}}

QUESTION

=> Show that x=-2 is a solution of 3x² + 13x + 14 = 0

▪So here we just need to plug in the value of x=-2 in the given equation !

♦Put x = -2 we have ,

=> 3 (-2)² + 13 (-2) + 14

=> 3 × 4 - 26 + 14

=> 12 + 14 - 26

=> 26-26

=> 0

★ Hence L.H.S is equal to zero for x = -2 !

Thus it's a solution of the equation ✔

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