Step-by-step explanation:
answer is been attached, hope u understand
Answer:
Treat the numbers separately and powers separately.
Multiply the two results at the end.
Example:
(2×10⁵) ÷ (4×10²)
(2 ÷ 4) × (10⁵ ÷ 10²)
0.5 × 10³
5.0 × 10²
Answer:
Step-by-step explanation:
1) f(x) = 7 - 8x²
f(3) = 7 - 8*3²
= 7 - 8*9
= 7 - 72
f(3) = -65
2) f(a) = -5(a-2)
f(3) = -5(3 -2) = -5 * 1 = -5

4) f(m) = m(m +4)
f(3) = 3*(3+4) = 3 * 7 = 21
True, this is a Pythagorean identity.