Question
. I Simplify the following algebraie expressions i. Usc rule of distribution lu expand (14x-5)(3x-4) ii. Use identities rule to the expression (4cdot x)^2 2a^3b^7times 2ab^5 iv. (14x-5)(3x-4) (9x-11)(3x+8) 2. A Polynomial (x) is multiple of x-3 and the remainder when P(x) is divided by x+3 is Determine the remainder when P(x) is divided by x^a-9 is marks) 3 . Applying splitting the middle term method factorise the expression 35x^2-54x+16 (3)marks) (5 marks) 4. Establish relations between log_(a)x=p and a^p=x 5. Use matrix method to solve the system of simultaneous equations below (5 marks) x-4y=3 3x-y=-2 b. State properties of matrix multiplication 7. If A=(} 1&2 -2&3 ) Verify that A(B+C)=AB+AC ifB+C= ) -1&2 4&3 8.Use first principle to differentiate the function y=(1)/(x^3) (5 marks) cs marks)
Solution
4.5
(260 Votos)
Wesley
Mestre · Tutor por 5 anos
Resposta
1. Simplify the following algebraic expressions: i.
- Using the distributive property, we get:
ii.
- Using the power of a product rule, we get:
iii.
- Using the product of powers rule, we get:
iv.
- This is the same as the first expression, so the answer is the same:
v.
- Using the distributive property, we get:
2. A Polynomial
is multiple of
and the remainder when
is divided by
is
. Determine the remainder when
is divided by
. - Since
is a multiple of
, we can write
, where
is some polynomial. - When
is divided by
, the remainder is
, so we can write
, where
is some polynomial. - Since
is a multiple of
, we can write
. - Equating the coefficients of
, we get
. - Substituting
, we get
, which is not possible. - Therefore, the remainder when
is divided by
is
.3. Applying splitting the middle term method factorise the expression
. - We can write the expression as
. - Grouping the terms, we get
. - Factoring out the common factors, we get
. - Rearranging the terms, we get
.4. Establish relations between
and
. - If
, then
. - Conversely, if
, then
.5. Use matrix method to solve the system of simultaneous equations below:
- Representing the system of equations in matrix form, we get:
- Solving the system using the inverse matrix method, we get:
6. State properties of matrix multiplication. - Matrix multiplication is associative:
- Matrix multiplication is not commutative:
- The product of a matrix