2017年3月27日 · The reason that this is wrong can be seen by looking at the equation we were trying to solve: #-(5x+24)=8-3x#. Since #8-3x# is positive, #5x+24# must be negative. However, as seen in the original equation, it is equal to the absolute value of some number, which is always positive. So, there is only one possible solution, #x=-2#. It is always ...

2015年5月31日 · Look for a pair of factors of 24 whose difference is 5. 24 = 8 xx 3 and 5 = 8 - 3 So x^2+5x-24 = x^2+(8-3)x-(8xx3) = (x+8)(x-3) So the solutions of x^2+5x-24 = 0 are x=-8 and x=3

2017年8月5日 · (x -8)( x+3) In the Ax^2 + Bx + C form of the equation the C is negative which means it must have one negative factor and one positive factor.

2016年11月19日 · x=-6 Solve x-5x=24. Simplify the left-hand side. -4x=24 Divide both sides by -4. x=24/(-4) x=-6

2018年5月30日 · x = -4 To solve this problem you first want to collect the like terms. You have two terms -x and -5x. You combine these terms to form -6x. Instead of thinking of the problem as subtracting 5x from -x you can think of it as adding -5x to -x. To understand this you can simply write out the x's individually. -x -x -x -x -x -x You see that when you subtract a negative from a negative it is like ...

2016年6月28日 · x^2-5x-24=color(blue)((x-8)(x+3)) The trinomial x^2-5x-24 In order to determine the two binomials that are the factors of the trinomial by doing the following: Determine two numbers that when added equal -5 and when multiplied equal -24. (You may need to make a list of combinations of numbers to find one that works with your problem.) The numbers -8 and 3 meet the criteria for this trinomial ...

2018年6月22日 · #"add "5x" to both sides"# #4x+5x-24=12# #"add 24 to both sides"# #9x=12+24=36# #"divide both sides by 9"# #x=36/9=4# #color(blue)"As a check"# Substitute this value into the equation and if both sides are equal then it is the solution. #"left "=16-24=-8# #"right "=-20+12=-8# #x=4" is the solution"#

2016年10月15日 · x=-12 Solve: 5x+24=-36 Subtract 24 from both sides of the equation. 5x=-36-24 5x=-60 Divide both sides by 5. x=-12

2016年10月23日 · Precalculus Solving Rational Inequalities Solving Rational Inequalities on a Graphing Calculator. 1 Answer . Narad T.

2017年11月23日 · x=-3 x=8 The quadratic can be solved by graphing. The solutions are where the graph crosses the x-axis. graph{x^2-5x-24 [-16.02, 16.01, -8.02, 8]} As you can see from the graph, it crosses the x axis at (-3,0) and at (8,0) The answers are x=-3 and x=8 This can also be solved by factorising the polynomial. x^2-5x-24=0 The factors are 8 and 3 because they multiply to make 24 and subtract to make ...