Question

1. Expanu usb
(a) (x + 3y)2​

Answer 1

Step-by-step explanation:

${(x + 3y)}^{2} \\ = {x}^{2} + {9y}^{2} + 2 \times x \times 3y \\ = {x}^{2} + {9y}^{2} + 6xy$

Answer 2

Answer:

(x+3y)^2=x^2+9y^2+2×x×3y

=x^2+9y^2+6xy