Simplify $\dfrac{40 a^2 b c}{180 a c^2}$. [1] Expand $(2 x-3)(5+x)$. [2] Given that \((m+2

Question

Simplify $\dfrac{40 a^2 b c}{180 a c^2}$. [1] Expand $(2 x-3)(5+x)$. [2] Given that $(m+2 n)^2=28$ and $m^2+4 n^2=12$, find the value of $-8 m n$. [2] Simplify the following as a single fraction in its simplest form.$$ \frac{2 x}{(x-5)(x+1)}+\frac{1}{5-x} $$ [3]

Accepted Answer

(a) $\frac{2ab}{9c}$ (b) $2x^2+7x-15$ (c) $-32$ (d) $\frac{x-1}{(x-5)(x+1)}$

Algebraic Expressions, Identities and Formulae

Algebraic Expressions, Identities and Formulae

Solution:

Solution locked