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These equations are what we call 'simultaneous' which means they are solved together. To do this, we need to make one of the variables (x or y) the subject of either of the equations.Rearranging the first...
ax2 + bx + c1) First factorise the quadratic equationTwo numbers whose product is 'c' and sum is 'b'In this question, c= 6 and b= 76 x 1 = 6 and 6 + 1 = 7So your two numbers are 6 and 1--...
Don't panic, focus on what you do know.You know 6/n * 5/(n-1) = 1/3or 30/(n^2-n) = 1/3simplify this to reach the target expression.
Step 1: (a )(a )Step 2: identify numbers that can multiply to 14: 1 & 14, 7 & 2Step 3: Identify which pair of numbers add together to make -5: 2 - 7 = -5<...
y=x2+x-6x= (-b+/- sqrt(b2-4ac))/2a<...
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