Answer:
we have to factories it in both activities..
Step-by-step explanation:
Activity 2:
c² - 6c - 40
Sum = -6
Product = -40
Factors= -10 , 4
c² - 6c -40 = c² - 10c - 4c - 10*4
= c(c - 10) - 4(c - 10)
= (c -10) (c -4)
e² + 10e +16
Sum = 10
Product = 16
Factors= 2 , 8
e² + 10e + 16 = e² + 2e + 8e + 2*8
= e(e + 2) + 8(e + 2)
= (e + 2)(e +8)
h² - 5h - 24
Sum = -5
Product = -24
Factors = 3 , -8
h² - 5h - 24 = h² + 3h - 8h - 3*8
= h(h + 3) - 8(h + 3)
= (h +3)(h - 8)
3x² - 5 x - 12
Product = -12 * 3 = - 36
Factors = -9 , 4
3x² - 5x - 12 = 3x² - 9x + 4x - 4*3
= 3x(x - 3) + 4(x - 3)
=(x - 3) (3x + 4)
4x² + 4 x - 15
Sum = 4
Product = 4 * -15 = - 60
Factors = 10 , -6
4x² + 4x - 15 = 4x² + 10x - 6x - 3*5
=2x (2x + 5) - 3(2x +5)
= (2x + 5)(2x - 3)
vhv
m/c
