Question

evaluate each of the following without multiplying directly.
1.(x+4) (x+10)
2.(3-2x) (3+2x)
3.(y^2+3) (y^2-3\2)

Answer 1

Step-by-step explanation:

X2+14X+40 this is your answer

Answer 2

Answer:

1)this is the I'd (x+a)(x+b)=x sq. +x(b+a)+ab

therefore ,(x+4)(x+10)=x sq. +x(4+10)+4×10

=x sq. +4x+10x+40

=x sq. +14x+40

2. it is a sq. -b sq. =(a+b)(a-b)

=3 sq -(2x )sq.=9-4x sq.

3. equation is wrong