Tolong bantu jawab,,,,

Tolong bantu jawab,,,,

Jawaban:

1.c

2.b

3.d

4.b

5.a

6.d

Penjelasan dengan langkah-langkah:

1. 2x²+8x-10=0

(2x -2)(x+5)=0

x= 1 dan x=-5 (1,5)

2. x² – (4+(-3))x+(4(-3))=0

x²-x -12=0

3. 3x²-6x-24=0

$frac{1}{x1 times x2} = frac{1}{ frac{c}{a} } = frac{1}{ frac{ - 24}{3} }= frac{1}{- 8} = - frac{1}{8}$

4. pkb: X²-((3p-3)+(3q-3))x+(3p-3)(3q-3)

=x²- (3(p+q)-6)) x +(9pq-9q-9p+9)

=x²- (3(5) – 6) x + (9(6)-9(p+q)+9

= x² – 9 x + (54-9( 5)+9)

= x² -9 x + (54-35+9)

= x²- 9x +28 = 0

5.f(x)= 2x²-x+1

x=2 2(2)²-2+1= 8-2+1=7

6. d.

f(x)= 2x²

unk x=0 mk y=0

unk x=-1 mk y=2

unk x=1 mk y= 2

unk x= -2 mk y= 8

unk x=2 mk y= 8

jadi diperoleh grafik d