Q. The function h is defined as h(x)=2x2+6.Find h(x+4).Write your answer without parentheses, and simplify it as much as possible.h(x+4)=□
Substitute x+4 into h: To find h(x+4), we need to substitute (x+4) into the function h in place of x.h(x)=2x2+6, so h(x+4) will be calculated by replacing x with (x+4) in the function.
Expand (x+4)2: Substitute (x+4) into the function h.h(x+4)=2(x+4)2+6Now we need to expand (x+4)2.
Distribute 2 across terms: Expand (x+4)2 using the formula (a+b)2=a2+2ab+b2.(x+4)2=x2+2×x×4+42=x2+8x+16
Combine constant terms: Substitute the expanded form of (x+4)2 back into the function h.h(x+4)=2(x2+8x+16)+6Now we need to distribute the 2 across the terms inside the parentheses.
Combine constant terms: Substitute the expanded form of (x+4)2 back into the function h. h(x+4)=2(x2+8x+16)+6 Now we need to distribute the 2 across the terms inside the parentheses.Distribute the 2 to each term inside the parentheses. h(x+4)=2⋅x2+2⋅8x+2⋅16+6 =2x2+16x+32+6 Now we need to combine like terms.
Combine constant terms: Substitute the expanded form of (x+4)2 back into the function h. h(x+4)=2(x2+8x+16)+6 Now we need to distribute the 2 across the terms inside the parentheses.Distribute the 2 to each term inside the parentheses. h(x+4)=2⋅x2+2⋅8x+2⋅16+6 =2x2+16x+32+6 Now we need to combine like terms.Combine the constant terms 32 and 6. h(x+4)=2x2+16x+38 This is the simplified form of h0 without parentheses.