Question

if a=-5x square-3x+2 ,b=3x square-7x+8 and c=x square+18x+3,find the value A-B-C

Answer 1

The primary of a transformer has 400 turns while the secondary has 2000 turns. if the power output from the secondary at 1100 v is 12.1 kw. calculate primary voltage. if the resistance of the primary is 0.2 ohm and that of secondary is 2 ohm and the efficiency is 90%. calculate the heat losses in the primary and secondary coils

Answer 2

The value of a-b-c is "-9x²-14x-9".

Step-by-step explanation:

$The \ given \ values \ are :\\a=-5x^2-3x+2\\b=3x^2-7x+8\\c=x^2+18x+3\\a-b-c=?\\Put \ the \ values \ of \ a,b \ and \ c,\\a-b-c=(-5x^2-3x+2)-(3x^2-7x+8)-(x^2+18x+3)\\a-b-c=-5x^2-3x+2-3x^2+7x-8-x^2-18x-3\\a-b-c=-9x^2-14x-9$

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