how to solve 4x^2 - 6x - 28 by mid-term splitting?
Answers
Answered by
1
Answer:
4x²+8x-14x-28 = 0
4x(x-2)-14(x-2)
(4x-14)(x-2)
#BAL
Answered by
1
Answer:
4x^2-6x-28
_ _ 4×-28 = -112
4x^2+14x-8x-28. -8 × 14
2x(2x+7)-4x(2x+7)
(2x+7)(2x-4)
2x+7=0 or 2x-4=0
2x=7 or 2x=4
x=7/2=3.5 or x=4/2=2
Similar questions