Question

factorise 5 x square + 14x + 8​

Answer 1

Answer:

=5xsquare +14x+8

=5xsquare +10x+4x+8

=5x(x+2) +4(x+2)

=(5x+4) (x+2)

x=-4/5, -2

i think you understand

Answer 2

Step-by-step explanation:

5x²+14x+8

d= b²-4ac

d= discriminant ,a=5,b=14,c=8

d= (14)²-4*5*8

d= 196-160

d= 36

x=-b±√d/2a

x=-14±6/2*5

case1

x= -8/10=0

x=-5/4

case2

x=20/10

x=2

answer= -5/4 and 2