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2y2 - 2y - 24 has the factors (2y + 6) and (y - 4)

There is a formula, but I always use trial and error.

The factors of the non-x element need to be such that they can be added to give the middle element.

So when you get 24, then you need to be looking at 2,12 - 3,8 - 4,6

When both the second and third element are minus values then there is a plus and a minus in the factors.

Q: How do you factorise the quadratic equation 2y squared - 2y -24?

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Let its sides be x and rearrange the diagonal formula into a quadratic equation:- So: 0.5(x^2-3x) = 252 Then: x^2-3n-504 = 0 Solving the quadratic equation: gives x a positive value of 24 Therefore the polygon has 24 sides irrespective of it being irregular or regular

It is: 3a(2b -3c) when factored

x2 - 21x = 72x2 - 21x - 72 = 0(x - 24) (x + 3) = 0x = 24x = -3

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That IS the equation. You may want to write with the equal sign: 6p = 24

Related questions

3(6x2-7x-24) by dividing all the terms by 3

A quadratic equation is any equation that can be expressed as ax2 + bx + c = 0.Note that the a, b and c are specified, x is the only unknown.Example:x2 - 10x - 24 = 0a, b, c are the coefficients of each term.Now x2 appears not to have a coefficient, but remember x2 is the same thing as 1x2 so the coefficient is 1. So a = 1.The second term has a coefficient of -10 because it has a minus, not plus sign in front of it so b = -10.Likewise for c, the third term. C = -24.So you have your terms.There are two popular ways of solving this.You can factorise the equation, or use the Quadratic Formula.I prefer to use the Quadratic Formula, as it is very straightforward, you just need to practise it.The quadratic formula is x = (-b±√(b2-4ac))/2a

2x+8x-2=22 10x-2=22 10x+2=+2 10x=24 10/10=24/10 x=2.4

x2+5x-24 = (x-3)(x+8)

There are no solutions to this quadratic equation because the discriminant is less than zero.

Perhaps, using the Quadratic Equation...y=x2+5x-6Solve for x:x2+5x+(-6-y)=0Using the Quadratic Equation:x = .5 *(-5 (+-) (25 + (24+4y)).5) = -2.5 (+-) .5*(49+4y).5Substitute y for x, x for y:y = -2.5 (+-) .5*(49+4x).5

24-36x =12(2-3x)

Quadratic equation

The equation x2 - 5x - 24 = 0 has the two solutions 8 and -3 for x.

108x2-102x+24 Simplified by dividing all terms by 6: 18x2-17x+4 When factorised: (9x-4)(2x-1) With a question like this using the quadratic equation formula will help.

I am lazy, so I use the quadratic equation if I can not factor easily by inspection. X^2 - 4X + 24 = 0 X = -b +/- sqrt(b^2-4a)/2a a = 1 b = -4 c = 24 -(-4) +/- sqrt[(-4)^2 - 4(1)(24)]/2(1) looks bad already. let us try discriminant b^2 -4ac 16 -96 this equation has no real solution

(a + 6)(a + 4)