Answer:
a=1
Step-by-step explanation:
Because x-1 is factor of f(x)
for x1=1, f(1)=0, then
f(1)=5*1^3+a*1^2-4*1-2=0
5*1+a*1-4-2=0
5+a-6=0
a-1=0
a=1
Answer:
the answer is C
Step-by-step explanation:
x2−162x2−9x+42x2+14x+244x+4
=4x3+4x2−64x−644x4+10x3−70x2−160x+96
=2x3+2x2−32x−322x4+5x3−35x2−80x+48
=2(x+1)(x+4)(x−4)(2x−1)(x+3)(x+4)(x−4)
=2x+22x2+5x−3
M<A = m<C = 53
answer is B. 53
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2x = 8
x = 4
answer
D. 4
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y = 3x (1)
y + 12 = 6x so y = 6x - 12 (2)
from (1) and (2) you haev
3x = 6x - 12
3x = 12
x = 4
y = 4x = 4(3) = 12
answer
C. y = 12
