Answer:
(x-3) (x-5)
Step-by-step explanation:
x²−8x+15
note that the constant term is 15 and the x-coefficient is -8
step 1: List factors of 15 : ±1, ±3, ±5, ±15
step 2: observe the factors listed and ask ourselves the following questions:
1) What 2 factors in the list , when multiplied gives the constant 15
2) What same 2 factors when added gives the x-coefficient -8
by deduction or trial and error, we can see that -3 and -5, when multiplied gives 15 and when added gives -8. Hence these become the factors.
Hence the factors are
(x-3) (x-5)
Answer: x less than or equal to 3, x less than or equal to -5.
Step-by-step explanation:
split into two
x-3<0 // x+5<0
x<3 // x<-5
3 and 4 are the correct answer and the picture shows how to solve it :)
Answer:
B. m∠b + m∠d + m∠e = 180°
(Total angle in a triangle)
C. (m∠a + m∠b) - m∠d = m∠b
(Alternate angles)
E. (m∠a + m∠b + m∠c) = (m∠b + m∠d + m∠e)
(Supplementary angles)
Answer:
mother = 36 years
daughter = 12 years
Step-by-step explanation: