Factorise: 3a $^{2}$ + 5ab + 2b $^{2}$
(2 marks)

Open in App

Solution

3a $^{2}$ + 5ab + 2b $^{2}$
= 3a $^{2}$ + 3ab + 2ab + 2b $^{2}$
= 3a(a + b) + 2b(a + b)
(1 mark)
= (3a + 2b)(a + b)
(1 mark)

Suggest Corrections

Similar questions

^{2}

^{2}

^{2}

^{2}

Factorise

$(i) c - 5 + 5 a b - a b c$

$(i i) 15 x y - 6 x + 5 y - 2$ [3 MARKS]

If the sides of a triangle are a^{2} - 3 a b + 8 units, 4 a^{2} + 5 a b - 3 units and 6 - 3 a^{2} + 4 a b units, then find its perimeter.

3 a^{2} - 4 a b + 6 b^{2} - (3 a^{2} - 8 a b - 2 b^{2})

Join BYJU'S Learning Program