Expanding (1−5z)(2−5z) into Standard Form
This article will guide you through expanding the expression (1−5z)(2−5z) into standard form.
Understanding Standard Form
Standard form for a polynomial refers to arranging its terms in descending order of their exponents. For example, the standard form of a quadratic expression would be ax² + bx + c, where a, b, and c are coefficients.
Expanding the Expression
We can expand the expression (1−5z)(2−5z) using the distributive property (also known as FOIL method):
(1−5z)(2−5z) = (1 * 2) + (1 * -5z) + (-5z * 2) + (-5z * -5z)
Simplifying the multiplication, we get:
2 - 5z - 10z + 25z²
Arranging in Standard Form
Combining like terms and arranging in descending order of exponents, we get:
25z² - 15z + 2
Therefore, the standard form of (1−5z)(2−5z) is 25z² - 15z + 2.