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Simply fully (3x^2 - 8x - 3) / 2x^2 - 6x

(3x 2 - 8x - 3) / 2x 2 - 6x == (3x + 1)(x - 3) / 2x 2 - 6x == (3x + 1)(x - 3) / 2x(x-3) == 3x+1 / 2x
GR
Answered by Gabriel R. • Maths tutor
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Solve (5− x)/2 = 2x – 7

(5-x)/2=2x-7 5-x=4x-14 5=5x-14 19=5x x=19/5
AP
Answered by Abigail P. • Maths tutor
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Show that x^2 - 8x +17 <0 for all real values of x

consider the discriminant b 2 -4ac 8 2 -4x1x17 64-68=-4 discriminant is below 0, there are no real roots therefore x 2 - 8x +17 &lt;0
Answered by • Maths tutor
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Calculate the first derivative of f( x)= 3x^3+2x^2-5

f’(x)= 9x^3+4x
Answered by • Maths tutor
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The point P has coordinates (4, 5). The point Q has coordinates (a, b). A line perpendicular to PQ is given by the equation 5x+3y=11. Find an expression for b in terms of a.

First we should find the gradient of the line perpendicular to PQ by rearranging the equation.5x+3y=113y=11-5xy=11/5 -5/3xy= -5/3x + 11gradient is -5/3.We know that the gradients of perpendicular lines multi...
SB
Answered by Staś B. • Maths tutor
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