निम्नलिखित में मतलब नहीं है (a)x2+5x+6 (b) y2+7y
(c) √x+2x
(d) x-5
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निम्नलिखित में मतलब नहीं है
(a)x2+5x+6
x² + 5x + 6 = 0
x² + 2x + 3x + 6 = 0
x (x + 2) + 3 (x + 2) = 0
(x + 2) (x + 3) = 0
x = -2, -3
(b) y2+7y
y² + 7y = 0
y² = -7y
y = -7
(c) √x+2x
√x + 2x = 0
√x = -2x
1 = -2√x
√x = -1/2
x = 1/4
(d) x-5
x - 5 = 0
x = 5
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