Question

(x-4) (x+2)=0

Answer 1

ab = 0 imples a = 0 or b = 0

Answer 2

so solve x-4 = 0 and x+2 = 0

Answer 3

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Answer 4

x-4and x+2=2xiskuwerd-8

Answer 5

See, for \((x-a)(x-b) = 0\)

Either first parenthesis ie \((x-a) = 0\) or second parenthesis ie \((x-b)\) = 0

So, \(x = a\) or \(x = b\)..

Answer 6

l=b

Answer 7

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