Lemmara logoLemmaraWorked solution

4MA1/1FR Jan 2019, Question 14: Square Roots

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 2 marks

اقرأ هذا الحل مشروحاً بالعربي ←

The question, in short

Calculate two numerical values: a square root of a product and a fourth power.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (a) · 1 mark

Find the square root of 64 × 36.

  1. 164 × 36 = 2304
  2. 2√2304 = 48
  3. 3√(64 × 36) = 48

Answer48

Part (b) · 1 mark

Calculate 11⁴.

  1. 111⁴ = 11 × 11 × 11 × 11
  2. 211 × 11 = 121
  3. 3121 × 121 = 14641
  4. 411⁴ = 14641

Answer14641

Stuck on a step? Read the free lesson: Square Roots

Practise more square roots questions

Real 4MA1 past-paper questions, marked on your working like the exam, with a worked solution for every part.

Practise free on Lemmara

More past-paper questions on square roots

Also searched as: 4MA1 1FR January 2019 · 4MA1/1FR · 4ma1 jan19 1fr · question 14.
Lemmara is an independent study tool, not affiliated with or endorsed by Pearson Edexcel. The worked solutions are Lemmara’s own.