Question

343x²-28y²

factorise​

Answer 1

QUESTION:

• 343x²-28y²factorise

ANSWER IN IMAGE

EXPLANATION:

• TAKE 7 AS COMMON

• 343÷7=49 AND 28÷7=4

• USE FORMULA

${a}^{2} - {b}^{2} = (a + b)(a - b)$

• FACTORISE HENCE