Mathematic Paper 1: Question 1 review
The Arete Project
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Mathematic Paper 1: Question 1 review
10 просмотров · 10 дн. назад
The Arete Project
14 подписчиков
10 просмотров · 10 дн. назад
Title idea: Question 1: Solving a Quadratic Equation to 2 Decimal Places
Description:
In this video I work through Question 1 step by step. We solve quadratic equations and give the answers correct to 2 decimal places, without losing marks on rounding.
What's covered:
Solving a factorised equation like (x − 4)(x − 1) = 0
Solving 4x² + 9x = 3 and giving answers correct to 2 decimal places
Why Domino Effect rounding gives wrong answers
Why you should always round once, from the original decimal
Key tip: Never round an already-rounded number. Look at the digit after the place you're rounding to in the original number.
If this helped, like the video, subscribe for more maths tips, and share it with a friend who is revising. Leave a comment with any questions or a topic you'd like covered next.
Thanks for watching!
#maths #quadratics #rounding #mathstips #revision #algebra