Question

Dijawabb ya buat bsok ni,yg terpenting no 3 sama 2

Answer 1

2. x² - 5x - 14 = 0
(x-7)(x+2) = 0
x-7 = 0 dan x+2 = 0
x = 7            x = -2

HP = {-2 , 7}

3. Luas Lingkaran = πr² = 22/7 x 7² = 154 cm²
Luas juring = sudut/360 x Luas lingkaran
                 = 150/360 x 154
                 = 64,17 cm²