Math Test

Certainly! Here are the modified questions with the answers enclosed in the appropriate tags:

a. Factorise \(a^2 + 4a\)
Answer

b. Factorise \(3x + 4x^2\)
Answer

c. Factorise \(4x^2 – x\)
Answer

d. Factorise \(7x – 3x^2\)
Answer

e. Factorise \(2x^2 + 4x\)
Answer

f. Factorise \(6x – 3x^2\)
Answer

g. Factorise \(12x + 16x^3\)
Answer

h. Factorise \(25x^2 – 15x^3\)
Answer

i. Factorise \(30x^3 + 10x^2\)
Answer

j. Factorise \(80y^3 – 30y^2\)
Answer

k. Factorise \(12x + 15x^2 – 18x^3\)
Answer

l. Factorise \(4a^3 – 6a + 8a^2\)
Answer

x={2}{7}/{9}

x = 31/4 + 71/2

(x+3)2 = 7/3

(x+3) / 2 = 7 / 3