Search our library of homework questions

Top answers

All subjects

All levels

2 log(x + a) = log(16a^6) where a is a positive constant. How do I find x in terms of a?

The left hand side of the equation can be rewritten as log(x+a)^2, using the power rule for logs. We can then simplify log(x+a)^2=log(16a^6) to (x+a)^2=16a^6. Taking the square root of both sides, we find...

Answered by Emily V. • Maths tutor

13154 Views

How do I solve quadratic equation by completing the square : X^2 - 4X = 5

We have X² - 4X = 5, write the expression on the left side as X² - 2•2X = 5. Then we would need extra term 4 to complete the square, so adding 4 on the both sides gives us, X²

Answered by Rabin K. • Maths tutor

3395 Views

How should I approach the critical essay? (Higher)

The key to this portion of the paper is to know your studied texts in depth. This is not to say that you should be able to recite 200 different lines from Anthony and Cleopatra. It is a case of understand...

Answered by Tutor243902 D. • English tutor

1270 Views

What is the difference between conservation and preservation regarding species

Although they both promote sustainability:
Conservation is the human involvement in attempts to protect wildlife. Usually with endangered species where they can be tracked and looked...

Answered by Aadil C. • Biology tutor

7131 Views

Integrate cos(4x)+16x^3 with respect to x

This is a simple integration, integrating each individual term with respect to x.For the cos(4x), you should use 'integration by substitution' as it is a function of a function.cos(4x) = cos(u) and u = 4x...

Answered by Aadil C. • Maths tutor

3196 Views