Factorise 4b² + 16b ⇒ 4b(b+4)
expand (a-1)(a-2) ⇒ a(a-2) - 1(a-2) ⇒ a² - 2a - 1a + 2 ⇒a² - 3a + 2
factorise x² + 8x + 7 ⇒(x + 1) (x + 7)
evaluate y⁶ / y² ⇒ y * y * y * y * y * y / y * y = y⁴
if x = -1 and y = 5, find z when z = x² + 2y² ;
z = -1² + 2(5²) ⇒ 1 + 2(25) ⇒1 + 50 = 51
Make x the subject: y = 4x - 3
y = 4x - 3
<u>+3 +3</u>
3 + y = 4x
<u>÷4 ÷4 </u>
(3+y)/4 = x
Answer:
1/4 of a dollar
Step-by-step explanation:
25x4=100
Answer:
NO
Step-by-step explanation:
In this case, restaurant gives the ratio of mixed vegetable and stock is 22:15
But he used 5:10 or 1:2 ratio.
Answer:
x=100
Step-by-step explanation:
180 degrees on a straight line.
180-57= 123
123-23=100
x=100
Hope this helps
