expand the brackets (x+5)(x+3) furthermore what are the two values of x
X2+3X+5X+15
Take the first X in the first bracket and multiply by every number or letter in the second bracket.
Take the Second number in the first bracket and multiply by every number or letter in the second bracket.
(x+5)(x+3)=0
(x+5)=0
so x=-5
(x+3)=0
so x=-3
SW
Related Maths GCSE answers
All answers ▸Factorise x^2+3x+2=0
Factorise (x^2 +3x-18)=0, solving for x
The perimeter of a right-angled triangle is 72 cm. The lengths of its sides are in the ratio 3 : 4 : 5. Work out the area of the triangle.
The equation of line L1 is y=5x-2. The equation of line L2 is 4y-20x=6. Show that these two lines are parallel.