Question

2. If x = 3, y = 2 and z = 5, find the value of
x² z²
(i)
(ii) x²y + xy
9 25
+​

Answer 1

Answer:

I) 225

II) 24

Step-by-step explanation:

• I)
• $3 {}^{2} \times 5 { }^{2} \\ = 9 \times 25 \\ =225$
• II)
• $(3 {}^{2} \times 2) + 3 \times 2 \\ = (9 \times 2) + 6 \\ = 18 + 6 \\ = 24$