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The formula booklet is useful for this type of question, but only once we've rearranged the expression into the correct form. The formula booklet expression is: (1 + z)^n = 1 + nz + 0.5n*(n-1)Answered by David M. • Maths tutor3670 Views
Step 1) Rearrange the equation as follows: (2x - x) + (6y + 2y) this makes it easier to see which values you can add together.Step 2) Solve the calculation in each bracket: x + 8y. Successfully simplifyin...
This question requires you to work through methodically in stages. We want two numbers, a and b, which fit into brackets of the form: (x + a)(x + b). By doing this, we have simplified the expression throu...
Find an expression for y y = 3 - x sub this into the second equation x^2 + (3 - x)^2 = 5then expand the bracketsx^2 + x^2 - 6x + 9 = 5simplify2(x^2 - 3x + 2) = 0<...
First differentiate the function to obtaindy/dx = 6x^2 + 30x + 24Then set this equal to 0 and solve to find the x values of the stationary points6x^2 + 30x + 24 = 06(x^2 + 5x + 4) ...
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