Over a million students use our free study notes to help them with their homework
When looking at this equation, we need to think of two numbers that multiply together to give 12 and have a difference of one. We can rewrite the equation as the following: (x-4)(x+3) = 0 Solving for x:Th...
3(x+1) - 2(x-1) = 1(x-1)(x+1)3x + 3 - 2x + 2 = x2 - 1x2 - x - 6 = 0(x - 3)(x + 2) = 0x = 3 x = -2
Begin by setting up the equations simultaneously. To make it easier we can label the equations (1) and (2)3y-2x=11 (1)y+x=12 (2)We then need to make the values of y or the values of x equal in both equati...
The quadratic formula is used to find the roots of a quadratic equation which comes in this form:y = ax2 + bx + cBy finding the roots, we mean that we find the values of...
Expand brackets: 8p-6. Move all values to one side: p - 8p + 15 + 6 = 0. Subtract p values and add normal numbers: -7p + 21 = 0. Move p values to other side: 21 = 7p. Divide through by 7: p = 21/7. p = 3....
←
81
82
83
84
85
→
Internet Safety
Payment Security
Cyber
Essentials