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Factorise f(x)=3x^3+8x^2-20x-16 completely

First we need to use the factor theorem to find a factor.f(1)=-25 so x-1 is not a factorf(-1)=9 so x+1 is not a factorf(2)=0 so x-2 is a factorSo x-2 is our starting point, we need to polynomial division ...

LB
Answered by Luke B. Maths tutor
5146 Views

Examine the ways in which Henry VII responded to the problem of his consolidation of power in the years 1485 to 1490, and whether or not he was successful.

In order the understand Henry's technique in consolidating his power along with his level of success it must first be understood why this was such a big issue for him by considering the problems he faced....

KJ
Answered by Kate J. History tutor
5175 Views

Describe the mechanism of the polymerase chain reaction.

The polymerase chain reaction (PCR) is basically a series of three-stage cycles, each stage occurring at a different temperature. The three stages are denaturation, annealing and extension.Denaturation ta...

RK
Answered by Reka K. Biology tutor
3547 Views

How can I improve my translation skills?

Here is a passage of French: "La thérapie comportementale se concentrera sur l'enseignement des comportements appropriés à l'enfant autiste. Habituellement, cela inc...

AM
Answered by Amy M. French tutor
2179 Views

Use the substitution u=cos(2x)to find ∫(cos(2x))^2 (sin(2x))^3dx

Step 1 differentiate substitution: du/dx = -2sin(2x)Step 2 rearrange for dx: dx=du/-2sin(2x)Step 3 substitute: integral= ∫u2sin3(2x).du/-2sin(2x)Step 4 get the integral in terms of u...

NA
Answered by Nabeel A. Maths tutor
7311 Views

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