Paano mo pinasimple ang 15x ^ 2 + 1- [4 (x ^ 2-6) +5]?

Sagot:

# 11x ^ 2 + 20 #

Paliwanag:

# 15x ^ 2 + 1- 4 (x ^ 2-6) +5 #

# 15x ^ 2 + 1- 4x ^ 2-24 + 5 #

# 15x ^ 2 + 1-4x ^ 2 + 24-5 #

# 11x ^ 2 + 20 #

Sagot:

# 11x ^ 2-20 #

Paliwanag:

Pumunta kami sa panloob na panaklong sa mga panlabas na:

# 4 (x ^ 2-6) = 4x ^ 2-24 #

# 4x ^ 2-24 + 5 = 4x ^ 2-19 # # 15x ^ 2 + 1- (4x ^ 2-19) = 15x ^ 2 + 1-4x ^ 2 + 19 #

# = 11x ^ 2-20 #