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integrate function (x^4+3x)/(x^2) with respect to x

split the integral into (x^4)/(x^2) and (3x)/(x^2) which becomes x^2 and 3*(1/x). These can now be integrated separately and added together after the integration. first integral: raise the power form 2 to 3,...
CS
Answered by Calum S. • Maths tutor
4253 Views

Estimate the answer to: (4.28 x sqrt(99))/7.83

4.28 rounds down to 4; sqrt(99) is approximately 10; 7.83 rounds up to 8 So an appropriate estimate would be: (4x10)/8 = 40/8 = 5
AT
Answered by Amy T. • Maths tutor
3394 Views

-8x + 7 > 5x + 2

-13 x + 7 > 2 -13 x > -5 x < 5/13 Remember multiply or divide a number by a negative number, you switch the inequality sign
HK
Answered by Hyerim K. • Maths tutor
3539 Views

Solve 3(x-2)=21

This question can be solved in two ways. One way is to divide the whole equation, both sides by 3, which gives x-2=7. Then add 2 to both sides to give x=9. Another way is to work out the left hand side of th...
XY
Answered by Xuexin Y. • Maths tutor
4848 Views

Solve x^2 - 2x - 15 = 0

This is a simple quadratic equation. To answer the question, it must first be factorised before it can be solved. To do this, two numbers need to be found which multiply to make the constant term and have a ...
JK
Answered by Jack K. • Maths tutor
19147 Views