Question

$x ^{2} - 4x + 3 = 8$
what will be its answer...class 9
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Answer 1

${x}^{2} - 4x + 3 = 8$

${x}^{2} - 4x + 3 - 8 = 0$

${x}^{2} + x - 5x - 5 = 0$

$x(x + 1) - 5(x + 1) = 0$

$(x + 1)(x + 5) \: = 0$

$x1 = x + 1 = 0$

$x2 = x + 5 = 0$

$now \:$

$x1 = - 1$

$x2 = 5$