cuy bantuin gua bntr poin bukan masalah
1. g(x) = 3x + 5
g(a) = -25
3x + 5 = -25
3x = -25 - 5
3x = -30
x = -30/3
x = -10
a = -10
2. f(x) = x - 2
f(a) = 3
x - 2 = 3
x = 3 + 2
x = 5
a = 5
3. g(x) = -2x² + 3
g(a) = -69
-2x² + 3 = -69
-2x² = -69 - 3
-2x² = -72
x² = -72/-2
x² = 36
x = √36
x = 6
a = 6
4. g(x) = -5x + 3
g(h) = -12
-5x + 3 = -12
-5x = -12 - 3
-5x = -15
x = -15/-5
x = 3
h = 3
Penjelasan dengan langkah-langkah:
1).
g(x) = 3x+ 5
g(a) = -25
- 25 = 3a + 5
-25 - 5 = 3a
-30 = 3a
- 10 = a
2).
f(x) = x-2
f(a) = 3
3 = a - 2
3+2 = a
5 = a
3).
g(x)= - 2x²+ 3
g(a)= - 69
-69= - 2a²+ 3
-69-3 = -2a²
- 72 = -2a²
-72 /-2 = a²
36 = a²
a = 6
4).
g(x)= -5x + 3
g(h)= -12
-12= -5h+3
-12 - 3= -5h
-15 = -5h
3 = h
