Question

calcule o quadrado da diferença: e) (p6-11)2; f) (x- 5÷4)2; g) (2÷3 -3ab)2???

Answer 1

e) (p6)²-2.p6.11+11² = 36p-132p+121

f) x² - 2.x.5/4 + (5/4)² = x² - (5/2)x + 25/16

g) (2/3)² - 2.(2/3).3ab + (3ab)² = 4/9 - 4ab + 9a²b²