Tutoring math, factoring is a typical topic. The tutor mentions a novelty. In this post, x^n means xn Sometimes, one can factor third degree polynomials of the form ax^3 +bx^2 +cx + d without using the remainder theorem, synthetic division, …
Heading towards exams, tutoring returns to factoring and other challenging topics. The math tutor shows how to solve a factoring problem that, at high school level, might be difficult. Suppose you are faced with the following problem: Solve -6×5+46×3+72x=0 This …
Tutoring high school math, you might be in review mode now. The math tutor brings up a couple of factoring instances. Instance 1: Suppose you need to factor -2x^2 + 4x + 70. How would you proceed? Solution: First, you …
The math tutor continues with factoring cubes. Tutoring calculus, this formula is another standby. Let’s turn to factoring x^3 – 64. Realizing that 64=4^3, you actually are facing x^3-4^3 You need the formula a^3 – b^3=(a-b)(a^2 + ab + b^2) …
Tutoring high school math, you rarely see this; it comes up often, however, in calculus. The tutor offers a light treatment. How do you factor x^3 + 125? You need the following formula: a^3 + b^3 = (a + b)(a^2 …
Tutoring math, you visit this topic with your grade 10 & 11 students. The math tutor shows one method. A complex trinomial is of the form ax2 + bx + c, where a≠0,1. An example is 2×2 -3x -35. How …