Question

(2x+3)²=

(4x+6)²=

(3x+7)²=

(5x+4)²=

Answer 1

(2x+3)•(2x+3)
4x²+6x+6x+9
4x²+12x+9

(4x+6)•(4x+6)
16x²+24x+24x+36
16x²+48x+36

(3x+7)•(3x+7)
9x²+21x+21x+49
9x²+42x+49

(5x+4)•(5x+4)
25x²+20x+20x+16
25x²+40x+16

Answer 2

(2x+3)²= (2x)² + 2x2x3+(3)²= 4x²+ 12+ 9
(4x+6)²= (4x)² + 2x4x6+(6)²= 8x²+ 48 + 36
(3x+7)²= (3x)² + 2x3x7+(7)²= 9x² + 42 + 49
(5x+4)²= (5x)² + 2x5x4+(4)²= 25x² + 40 + 16