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Earn +20 ptsQ: What is the discriminant of x2 plus 7x plus 2 equals 0?
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X2 plus 7x plus 12 equals 0?
x2+7x+12=0 x2+7x=-12 x+Sqaure Root of 7x= 2(SQ Root Symbol)3
X2 plus 7x plus 9 equals 3?
x2 + 7x + 9 = 3 ∴ x2 + 7x + 6 = 0 ∴ (x + 6)(x + 1) = 0 ∴ x ∈ {-6, -1}
How do you solve x2 plus 7x plus 12?
x2+7x+12
Does X2 plus 7x plus 18 equals factor?
X^2 + 7X + 18 = 0 try the discriminant b^2 - 4ac 7^2 - 4(1)(18) 49 - 72 < 0 so, no real roots and no factors of 18 add to 7
What use the discriminant to determine the nature of the roots of x2 plus 2x plus 5 equals 0?
No real roots
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