Question

Selesaikan dgn bntk al jabar!!:)
a. (3 x - 7) (2 x + 3)
b. ( 2 p - 1/2 ) ( 4 p + 4 )
c. ( 4 m × 5 n ) 3 m
d. ( 3/2 b × 4 c ) 9c
e. ( 2 k + 1/21 )
f. ( 2x + 1/2x ) ( 2 x - 1/2 x )
g. ( 3 x-7 ) ( 2 x + 3 )
h. 4 ( 3x² + 5/12 y - 32 )
i. ( 5 x + 3 y )²
tolong di bantu yah!!!please:)

Answer 1

A. (3 x - 7) (2 x + 3)
6x^2 - 5x - 21
b. ( 2 p - 1/2 ) ( 4 p + 4 )
8p^2 + 6p - 2
c. ( 4 m × 5 n ) 3 m
12m^2 x 15mn = 180m^3n
d. ( 3/2 b × 4 c ) 9c
27/2 bc x 36 c^2 = 486 bc^3
e. ( 2 k + 1/21 )
42k/ 21 + 1/21 = (42k+1) 1/21
f. ( 2x + 1/2x ) ( 2 x - 1/2 x )
(4/2x+1/2x) (4/2x-1/2x) = (5/2x) x (3/2x) =15/4x^2
g. ( 3 x-7 ) ( 2 x + 3 )
6x^2 - 5x - 21
h. 4 ( 3x² + 5/12 y - 32 )
12x^2 + 5/3y - 32
i. ( 5 x + 3 y )²
25x^2 + 30xy + y^2

note = lambang (^) itu merupakan lanbang pangkat