Ano ang x-intercepts ng equation f (x)) = 3x ^ 2 + 10x-8?

Sagot:

x - intercepts ay #(2/3,0)# at #(-4,0)#

Paliwanag:

Given -

#f (x) = 3x ^ 2 + 10x-8 #

# y = 3x ^ 2 + 10x-8 #

Ilagay # y = 0 #

# 3x ^ 2 + 10x-8 = 0 #

# 3x ^ 2-2x + 12x-8 = 0 #

#x (3x-2) +4 (3x-2) = 0 #

# (3x-2) (x + 4) = 0 #

# 3x-2 = 0 #

# x = 2/3 #

# x + 4) = 0 #

# x = -4 #

x - intercepts ay #(2/3,0)# at #(-4,0)#