File - Ms Burton`s Weebly
... Expressions need to be written as simply as possible. There are rules that should be followed: ...
... Expressions need to be written as simply as possible. There are rules that should be followed: ...
2.3 Removing brackets 1
... 4(5 + x) is equivalent to 4 × 5 + 4 × x which equals 20 + 4x. 5(a − b) is equivalent to 5 × a − 5 × b which equals 5a − 5b. 7(x − 2y) is equivalent to 7 × x − 7 × 2y which equals 7x − 14y. −4(5 + x) is equivalent to −4 × 5 + −4 × x which equals −20 − 4x. −5(a − b) is equivalent to −5 × a − −5 × b wh ...
... 4(5 + x) is equivalent to 4 × 5 + 4 × x which equals 20 + 4x. 5(a − b) is equivalent to 5 × a − 5 × b which equals 5a − 5b. 7(x − 2y) is equivalent to 7 × x − 7 × 2y which equals 7x − 14y. −4(5 + x) is equivalent to −4 × 5 + −4 × x which equals −20 − 4x. −5(a − b) is equivalent to −5 × a − −5 × b wh ...
Second Year Honours Maths Notes on Factors
... There can only be two numbers There must be a minus between them. They must be written as squares or can be written as squares. Open up two brackets and add the numbers in the first, subtract the numbers in the second. ...
... There can only be two numbers There must be a minus between them. They must be written as squares or can be written as squares. Open up two brackets and add the numbers in the first, subtract the numbers in the second. ...
