Question

(c) (i) Expand using formula :
(2 x + 3y
(ii) Expand using formula: ( 201 )2​

Answer 1

(2x+3y) 2 =(2x)^ 2+2(2x)(3y)+(3y) ^2

=(4x)^2 + 12xy+ (9y )2

Aliter: (2x+3y) ^2 =(2x+3y)(2x+3y)

=2x(2x+3y)+3y(2x+3y)

=(2x)(2x)+(2x)(3y)+(3y)(2x)+(3y)(3y)

= (4x )^2 + 6xy+ 6yx+(9y )^2 [∵xy=yx]

(2x+3y) ^2=(4x)^ 2 +12xy+(9y)^ 2

Answer 2

Answer:

use the formula (a+b)^2

(200+1)^2

40000+400+1

40401

2)(2x+3y)^2

4x^2+9y^2+6xy

Step-by-step explanation:

I hope it helps u