Answer:
x=-10s. s=-x/10
Step-by-step explanation:
Answer:
(5x + 4)(3x+2)
Step-by-step explanation:
15x² + 22x + 8
First, you find two, when added equals 22 and when multiplied together equals 15*8
You then replace 22x with the two numbers
15x² + 10x + 12x + 8
You then group the above expression in 2s
(15x²+10x) + (12x + 8)
Find common factors in each group
5x(3x + 2) + 4(3x + 2)
(5x + 4)(3x+2)
Answer:17
Step-by-step explanation:
The scale factor is 3 as the lengths in the bigger triangle when divided by 3 gives the lengths in the smaller triangle
Answer:
k = 11
Step-by-step explanation:
What the factor theorem is telling us is that if x + 1 is a factor of 2x - kx²-8x + 5 then when x = - 1 is put into the equation, the result will be 0. That's because x +1 = 0 when x = - 1
f(-1) = 2(-1) - k(-1)^2 - 8(-1) + 5
f(-1) = -2 - k(1) + 8 + 5 = 0
-k*(1) + 11 = 0
-k = -11
k = 11