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Express the polynomial x^3+x^2-14x-24 as a product of three linear factors.

Firstly, use the factor theorem to determine one factor. Substitute factors of 24 into the equation, beginning at plus or minus 1 and then increasing. The first factor found will be -2, therefore (x+2) is a ...
SW
Answered by Scarlet W. • Maths tutor
17735 Views

Kenny has £3200 in a savings account. After a year, the bank pays him interest increasing his balance to £3360. What percentage rate was applied to the account?

Kenny originally had £3200 After a year, he had £3360 £3360 - £3200 = £160 160/3200 = 0.05 0.05 x 100 = 5% Therefore, a 5% interest rate was applied to Kenny's account
MC
Answered by Megan C. • Maths tutor
6257 Views

Solve the quadratic equation x^2 - 5x - 14 = 0, using factorisation.

Using factorisation, first we would have to look at the factors that multiply to make the last term, (-14). We know that they are +/- 7 and -/+2, and +/- 14 and -/+ 1, respectively. Now we have listed the fa...
ME
Answered by Mram E. • Maths tutor
9028 Views

Solve the inequality: 5x-3 < 7x-6

5x-7x &lt; -6+3 =&gt; -2x &lt; -3 =&gt; x &gt; 3/2
VC
Answered by Varshan C. • Maths tutor
4493 Views

Expand and simplify (2x + 4)(3x - 5).

6x^2 - 10x + 12x - 20 6x^2 + 2x - 20
DS
Answered by Daniel S. • Maths tutor
12308 Views