Answer:
27
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
4/(4+5) × 180 = 4/9 × 180 = 80
Answer:
- x = 4 is the only real zero
Step-by-step explanation:
<u>Find the zero's of f(x)</u>
- 2x³ - 12x² + 20x - 16 = 0
- x³ - 6x² + 10x - 8 = 0
- x³ - 4x² - 2x² + 8x + 2x - 8 = 0
- x²(x - 4) - 2x(x - 4) + 2(x - 4) = 0
- (x - 4)(x² - 2x + 2) = 0
- (x - 4)(x² - 2x + 1 + 1) = 0
- (x - 4)[(x - 1)² + 1] = 0
- x - 4 = 0 ⇒ x = 4, we already know this
- (x - 1)² + 1 = 0 ⇒ (x - 1)² = - 1, no real solution as the square is never negative
<span>27m^3+64n^3 is an example of the sum of two cubes.
There's a factoring formula for that: a^3 + b^3 = (a + b)(a^2 - ab + b^2.
Thus, </span><span>27m^3+64n^3 = (3m + 4n) ( 9m^2 - 12mn + 16n^2).
Could also find this out by dividing 3m+4n into </span><span>27m^3+64n^3.</span>
Answer:
y = (x- 3) -1
Step-by-step explanation:
is this right pls tell me i want to know
