book Maths Puzzle Numerical Ability

2x+2y+z=-6
3x-2y+z=8
2x-y-z=11

Read Solution (Total 0)

book Other Question

Mr. Jones says that he has 3 daughters, the product of whose s is 72. Furthermore, the sum of their ages is equal to his house number. A mathematician claims that even though he kn please help me solve the following quadratic equations by factorisation;
1.3x^2+11x-4=0
2.x^2+5x-6=0
3.4x^2+14x+6=0
4.3x^2-5x-2=0
5.3x^2-5x+2=0
6.5x^2-14x-3=0