fctorise x2 - 11x + 28
Answers
Answered by
1
Answer:
(x-7)(x-4)
Step-by-step explanation:
in a question where you need to factorise and there is only one of x to the 2 you know both brackets start with x and then -11x means that both the numbers after the x add up to -11 as shown -7+-4 = -11 and then the 28 on the end means that the two numbers after the x multiply to 28 as shown -7x-4 = 28
Answered by
8
Answer:
(x-7)(x-4)
Step-by-step explanation:
x² - 11x + 28
=> x² - 7x - 4x + 28
=> x(x-7) - 4(x-7)
=> (x-7)(x-4)
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