Question

Zeros Find of the function f (x)=34²+x- Determine without graphing weather the given function has maximum or minimum value, Find the value? a f (x) = -442-8873 x² + x>-2

Answer 1

O Find Zeros of the functim fin) - 372+x- +x-1 sol f(x)= 3x²+x-1/4 f(x)=0 - 3x²+x-Ź 3x2+x-=0 6x²+2x-1=0 6x2+3x-2x-1=0 32(2x+1)-118x+1)=0 (3x-1)(2x+1)=0 x= x = -2 Zeros ale +/- 1 1 1 the given too 2 Determine without graphing graphing weather value find the value has a maximum or minimum #x) = -442-8x+3 50 f(x) = -4x2-3x+3. f1x)= -8X-8 +?=0= -88-870 x+1=0

25-1 f'@) = -8 <0 2-0 [:.it f'(a) co so fox) is monimum. at x=a. X=-1 flag is maximum value. -4+8+3 I f1-1)=-46-12-80-1) +3 value manimum 2-1 find is marimum the at x=-1 is 7 3 ** +32 7-2 Sol x²+3x7-2 x²+3x+270 (x+1)(x+2) >0 (X+1]>0 2+2)<o 27-1 く-2 x C (-0,-4) U(--)