Photo AI
Tenzin is given this question - OCR - GCSE Maths - Question 13 - 2018 - Paper 4
Question 13
Tenzin is given this question. Factorise fully. $2x^2 + 6x$ Here is his answer. $2x^2 + 6x = x(2x + 6)$ Explain why Tenzin's answer is not correct.
Worked Solution & Example Answer:Tenzin is given this question - OCR - GCSE Maths - Question 13 - 2018 - Paper 4
Step 1
Explain why Tenzin's answer is not correct.
Answer
Tenzin's answer is not correct because he did not fully factor the expression. He factored out only one common factor, which is , but he did not take into account the full common factor of . The correct factorization should be:
By leaving out the , Tenzin's factorization is incomplete.