TENTUKAN LUAS BANGUN DI BAWAH INI, (x – 5)cm (x + 3)cm

Algebra~

P = (x + 3) cm

L = (x – 5) cm

Luas = P × L

=> (x + 3)+(x – 5)

=> x(x – 5)+3(x – 5)

=> (x . x) + (x . (-5)) + (3 . x) + (3 . (-5))

=> x² – 5x + 3x – 15

=> x² – 2x – 15

Yuurikoo~