Question

33.Using(x+a)(x+b)=x2+(a+b)x+ab,find

b)(4x-5)(4x-1)​

Answer 1

Answer:

ans in the image hope it's help you

Answer 2

Answer:

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Step-by-step explanation:

Using formula (x+a)(x+b)=x²+(a+b)x+ab

Here x=4x , a= -5, b =-1

⇒(4x)²+[-5+(-1)]4x+(-5)(-1)

⇒16x²+(-5-1)4x+5

⇒16x²+(-6)4x+5

⇒16x²-24x+5