What is the discriminant of the quadratic equation 3 – 4x = –6x2? –68 –56 76 88
2 answers:
Answer:
.
Step-by-step explanation:
Given : -6x² = 3 -4x.
To find : What is the discriminant of the quadratic equation .
Solution : We have given that -6x² = 3 -4x.
Rewrite the equation : -6x²+ 4x -3 = 0.
Standard form of quadratic form : ax²+ bx + c = 0.
Discriminant = .
Then, a = -6 , b =4 , c =-3
.
.
.
Therefore, .
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Answer:
x > -4
Step-by-step explanation:
Inequalities like these are solved the same way equations are solved, except when multiplying both sides you flip the less than/greater than sign:
3x + 7 > -x -9
3x + 7 - 7 > -x -9 -7 Subtract 7 from both sides
3x > -x -16
3x + x > -x -16 + x add x to both sides
4x > -16
>
divide both sides by 4
x > -4
In this case the inequality sign did not have to be flipped since we never multiply both sides by a negative number.