2012年11月30日 · Hi Erika, Let's begin by writing out the expression we need to simplify: (2x - 3)^2. First, we know that squaring an expression is the equivalent of multiplying the expression …

2021年8月14日 · Ask a question for free Get a free answer to a quick problem. Most questions answered within 4 hours.

2017年8月22日 · I need help trying to sole tan^2 x =1 where x is more than or equal to 0 but x is less than or equal to pi Answers · 5 find all solutions to the equation in (0, 2pi) sin(6x)+sin(2x)=0

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symbol. A * symbol is not necessary when multiplying a number by a variable. For instance: 2 * x can also be entered as 2x. Similarly, 2 * (x + 5) can also be entered as 2(x + 5); 2x * (5) can be …

2018年3月4日 · Using the basic Pythagorean Identity, replace the squared sine by 1 - equivalent squared cosine, and you will soon get this equation reduced to cos(2x) = 1 which you will …

2025年1月18日 · 2x+3y=8. Just carefully follow this secret recipe for the easiest and most convenient way of solving this. The easiest way to solve these 2 equations by substitution is to …

2013年3月31日 · 1) Rearrange the order to get ax^2 + bx + c.-x^2 - 2x + 3. 2) Identify a-value and factor it out of first two terms. a = -1.-(x^2 + 2x) + 3. 3) Find value of (b/2)^2. b = 2. Therefor …

2012年11月20日 · If you have trinomial 2x 2 +5x-3. First you want to find product of first and third term coefficients: 2×(-3)=-6 Now you need to find two numbers that give you -6 when …

2018年7月18日 · Use the remainder theorem to find P(-2) for P(x)=2x^3+2x^2+9. Give the quotient and remainder for the associated division and the value of P(-2). Follow • 3