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is the statement 5.2 x 10> 34 correct?

yes. firstly , we needs to solve what 5.2 x 10 is. This will give us a number to then compare to 34. so , to solve 5.2 x 10 we must remember that the multiply sign means the number will get bigger. since we ...
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Answered by Victoria E. • Maths tutor
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Given the curve y=x^2 -6x +8, find the turning point.

For a turning point, the differential of the curve is equal to 0. Therefore dy/dx = (1 2)x^(2-1) - (6 1)x^(1-1) + 0 = 0. This gives x = 3. Substitute this back into the original equation to get y=-1. Therefo...
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Answered by Ellis B. • Maths tutor
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Expand and simplify fully (x+3)(x-1)

When expanding brackets one should follow the FOIL order, multiplying out in this order: F irst- The first term in each bracket O utside- The outside terms of the brackets I nside- The inside terms of the br...
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Answered by Callum L. • Maths tutor
9947 Views

Factorise x^2+3x+4 without the use of quadratic formula

We use the form ax^2+bx+cTo factorise we need to put the equation into 2 bracketsThese 2 brackets will be in the form (x+k)(x+j) where k and j are to be foundWe need to find a combination of k and j for whic...
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Answered by William C. • Maths tutor
3843 Views

f(x)=12x^2e^2x - 14, find the x-coordinates of the turning points.

f(x)=(12x^2)(e^2x) - 14, so using the chain rule f'(x)=(24x)(e^2x) + (12x^2)(2e^2x).To find the turning points set f'(x)=0, so (24x)(e^2x) + (24x^2)(e^2x) = 0. Thus (24xe^2x)(1+x)=0. Thus x=0 or x=-1.
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Answered by Charlotte H. • Maths tutor
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