Answer:
-23
Step-by-step explanation:
Substitute -5 for n to get 4(-5)-3 = -20-3 = -23
To factorise it start with putting the xs in brackets.
(x )(x )
Then you must find 2 numbers which multiply to +81 and sum to -18.
81 is the product of 9×9 or -9×-9.
9+9=+18
-9+-9=-18
So they two numbers must be -9.
So factorised it is (x-9)(x-9) or (x-9)^2
Answer:
48
Step-by-step explanation:
The Perimeter Is The Outside length of the shape.
Answer:
1150 because 400 + 394 + 388 = 1182 - 32 = 1150.
1. The fractions shown are 3/4 and 6/8.
2. The multiplier is 2.
3. The fractions shown are 12/18 and 4/6
4. The divisor is 3.
