5×2= Gwen
Gwen ran 10 miles
Answer:
f(4) = -129
Step-by-step explanation:
Substitute the value of x which is 4
f(x) = -2x4 + 6x3 - 3x + 11
f(4) = -2(4)4 + 6(4)3 - 3(4) + 11
f(4) = -2(256) + 6(64) - 12 + 11
f(4) = -512 + 384 - 1
f(4) = -128 - 1
f(4) = -129
Answer:
above is the solution to the question
Answer:
Has no real solution (only imaginary solutions)
Step-by-step explanation:
x²-3x+8=0
recall for a quadratic equation in the form
ax² + bx + c = 0
the if b²- 4ac is negative (i.e less than zero), then the equation has no real solutions.
in this case,
a=1, b = -3 and c=8
b²- 4ac,
= (-3)² - (4)(1)(8)
= 9 - 32
= - 23 (negative number hence no real solutions)
