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how do i factorise a quadratic equation when the coefficient of x^2 is not 1?

Let us take this quadratic equation as an example:2x 2 - 3x - 14 = 0The key here is to look for two numbers that multiply to the same number that 2 and -14 multiply to make, so that is 28. The numbers should...
ET
Answered by Ella T. • Maths tutor
4214 Views

Let f(x)= x/5 + 1 . Find f^-1(x)

f^-1(x)= 5(x-1)
EC
Answered by Ella C. • Maths tutor
3285 Views

Make x the subject of the formula y = x/3 -2a

y =x/3 - 2a y + 2a = x/3 3y+6a = x
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Answered by Ella C. • Maths tutor
9485 Views

How do we integrate a quadratic equation?

Increase the power by one and divide by the new powere.g. integrate x 2 +5x + 3Answer: x 3 /3 + 5x 2 /2 + 3x
SP
Answered by Sophia P. • Maths tutor
5267 Views

Solve the simultaneous equations: 3x + y = 15 and 4y + 3 = 9x

The best way to solve simultaneous equations is by substitution. The first step is to pick a variable to eliminate. In this case, I'm going to choose to eliminate y because the first equation has a y on it's...
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Answered by Samuel B. • Maths tutor
5468 Views