An equation shows that two mathematical expressions have the same value using an equals sign (=). It can involve numbers variables functions and mathematical operations to express relationships. Equations help us solve problems find unknown values and describe mathematical patterns ...
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The quadratic formula solves ax² + bx + c = 0 where a b and c are numbers and a ≠ 0. The solution is x = [-b ± √(b² – 4ac)] / (2a). The ± means to calculate both ...
A root is a part of the plant that grows underground and absorbs water and nutrients from soil. It anchors the plant firmly and stores food. Roots can be thin or thick fibrous or taproots spreading deep in soil and ...
Equal roots occur in a quadratic equation when the discriminant equals zero. This means both roots have the same value indicating the parabola touches the x-axis at exactly one point. For example x² + 4x + 4 = 0 has ...
The quadratic formula finds solutions (x-values) where ax² + bx + c = 0. For any quadratic equation the roots are x = [-b ± √(b² – 4ac)] / (2a) where b² – 4ac is called the discriminant and determines ...