Question

The pair of zeros of the polynomial 2xthe pair of zeros of the polynomial 2x square + 14 x + 20 is equal to ​

Answer 1

Given ; p(x) : 2x² + 14x + 20

• 2x² + 14x + 20 = 0
• 2x² + 10x + 4x + 20 = 0
• 2x( x + 5 ) + 4( x + 5 ) = 0
• (2x + 4)(x + 5) = 0
• 2(x + 2)( x + 5) = 0

Thus ;

• at x+2 = 0 ; x = -2
• at x+5 = 0 ; x = -5

#answerwithquality

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