1. (X+4) (X+4), 2. (2r-5) (2r-5), 3. (3-4m) (3-4m), 4. (2h-7) (2h-7), 5. (8-3x) (8-3x)

1. (x+4) (x+4)
2. (2r-5) (2r-5)
3. (3-4m) (3-4m)
4. (2h-7) (2h-7)
5. (8-3x) (8-3x)

 

Answer:

1. (x + 4)(x + 4)

(x)(x) + (x)(4) + (4)(x) + (4)(4)

x²+ 4x + 4x + 16

= x² + 8x + 16

2. (2r - 5)(2r - 5)

(2r)(2r) + (2r)(-5) + (-5)(2r) + (-5)(-5)

4r² - 10r - 10r + 25

= 4r² - 20r + 25

3. (3 - 4m) (3 - 4m)

(3)(3) + (3)(-4m) + (-4m)(3) + (-4m)(-4m)

9 - 12m - 12m + 16m²

= 16m² - 24m + 9

4. (2h - 7) (2h - 7)

(2h)(2h) + (2h)(-7) + (-7)(2h) + (-7)(-7)

4h² - 14h - 14h + 49

= 4h² - 28h + 49

5. (8 - 3x) (8 - 3x)

(8)(8) + (8)(-3x) + (-3x)(8) + (-3x)(-3x)

64 - 24x - 24x + 9x²

= 9x² - 48x + 64